Ireland
🌸 Předprodej jiřin spustíme 3. února 2026 v 10.00. 🌸
Mallow Brilliant, Loukykvět
Mallow Brilliant, Loukykvět
Mallow Brilliant, Loukykvět
Mallow Brilliant, Loukykvět

Sidalcea

Mallow Brilliant

Mallow is a beautiful, long-flowering perennial. Its inflorescence resembles miniature hollyhocks or mallow. It pairs well with a classic rose combination or in wilder beds with grasses. Show full description

Vyprodáno

Seedling

Vyprodáno
 za where

Barva květu

Růžová

Barva listu

Zelená

Druh

Trvalka

Mrazuvzdornost

-28
?
Do jaké teploty daná rostlina odolává mrazům.

Mrazuvzdornost (zóna)

5a (-28.9 °C až -26.1 °C)

Náročnost

Začátečník

Půda

Hlinitá, humózní, propustná

Spon

40-40 cm
?
Doporučený spon pro pěstování.

Spon: Počet na m2

6

Stanoviště

Slunce

Vhodné k řezu

Ano

Vláha

💧💧

Výška

80-100 cm
1
2
3
4
5
6
7
8
9
10
11
12
Kvetení
July
September

Recommended products

Sidalcea

False Mallow is a beautiful long-blooming perennial. Its inflorescence resembles miniature hollyhocks or mallow. It pairs well with classic rose combinations as well as wilder beds with grasses.
Sold Out
V prodeji opět na jaře 2026

Verbascum hybridum

A beautiful, though rather short-lived, perennial, ideal for steppe areas alongside delicate xerophilous grasses and perennials. For bouquets, harvest when approximately half of the flowers in the inflorescence are open. It lasts about 5 days in a vase. An exceptional cultivar with flowers in peach and apricot tones, transitioning to an elegant old rose as they fade.
Sold Out
V prodeji opět na jaře 2026

Calamintha nepeta

Nenáročná a skromná trvalka, která vykvétá velkým množstvím drobných kvítků. Kvete rekordně dlouhou dobu po celé pozdní léto a podzim. Tvoří menší kompaktní vzdušné keříky, které vydávají mátově kořenitou vůní. Květy podobné tymiánu lákají včely, čmeláky a motýly. Dobře bude vypadat mezi růžemi i v přírodně pojatých stepních záhonech třeba s nižšími trávami. 
Sold Out
V prodeji opět na jaře 2026

Physostegia virginiana

The Chain Plant is a native plant of the eastern regions of North America, where it grows on riverbanks and in moist meadows. It forms upright, bushy clumps that spread into the surroundings via root suckers. The flowers have the shape of a slender spike with four rows of tubular flowers and resemble snapdragon flowers. Harvest when the first flowers in the inflorescence open; they will continue to bloom in the vase. In a bouquet, they are a suitable accompaniment for dahlias and last 10–14 days in a vase. The spent flower spikes with seeds are interesting and also suitable for drying. Alba has pure white flowers and spreads well.
Sold Out
V prodeji opět na jaře 2026

Delphinium hybrida

Delphiniums are a classic and a dominant feature among perennial flower beds. They are often seen alongside roses and peonies. To truly stand out, they need ample space and regular fertilization. Their beauty can be enjoyed in beds, bouquets, and even dried, as the flowers retain their rich color well. They last 7 days in a vase and are sensitive to ethylene released from ripening fruit.
Sold Out
V prodeji opět na jaře 2026

Catananche caerulea

Catananche is a medium-tall, short-lived perennial. It originates from the Mediterranean and is therefore suitable for areas with milder winters. Attractive blue flowers that resemble chicory. The undeveloped flower buds are also beautiful, as are the silvery faded inflorescences. Also suitable for drying. Fresh, they last 7 days in a vase.
Sold Out
V prodeji opět na jaře 2026

Physostegia virginiana

Physostegia is native to the eastern regions of North America, where it grows on riverbanks and in damp meadows. It forms upright, bushy clumps that spread outwards by root suckers. The flowers are shaped like slender spikes with four rows of tubular flowers, resembling snapdragons. Harvest them as soon as the first flowers in the inflorescence open; they will continue to bloom in the vase. In a bouquet, they are a suitable companion for dahlias and last 10–14 days in a vase. The spent flower spikes with seeds are interesting and can also be used for drying. Vivid is shorter and more compact, blooming early and profusely. The flower color is distinctively purplish-pink.
Sold Out
V prodeji opět na jaře 2026

Sidalcea hybride

The tree mallow is a beautiful, long-flowering perennial. Its inflorescence resembles miniature hollyhocks or mallow. It is well-suited for classic combinations with roses and for wilder beds with grasses. The garden cultivar 'Elsie Heugh' has beautiful, delicate pink flowers with fringed edges.
Sold Out
V prodeji opět na jaře 2026

Achillea millefolium

An original wild perennial with a large distribution area from Europe to Siberia. Suitable for natural and wild plantings. It grows in meadows and dry grassy areas. A very adaptable and undemanding plant, it grows in clumps and spreads by runners. Cutting back after the first bloom will encourage new flowers. For bouquets, harvest when the flowers are fully open. Lasts 10 days in a vase. Summer Pastels features a varied and delicate range of colors from white and vanilla to salmon, brick, and bronze.
Sold Out
V prodeji opět na jaře 2026
Lze sušit

Goniolimon tataricum

In nature, it is found in steppes on dry pastures and rocky slopes of Central and Southern Europe. It is a well-known floristically utilized plant. Excellent for use fresh or dried. For drying, select only stems with fully bloomed flowers. Hang flowers upside down in a dry, airy, and dark place.
Sold Out
V prodeji opět na jaře 2026
Lze sušit

Limonium latifolium

Broadleaf sea lavender, also known as Statice, is a plant originally from the steppe regions of Southern Europe. Leathery leaves form basal rosettes, from which veiled panicles of tiny, light lavender-colored flowers emerge. Perfect for bouquets; for drying, harvest when the flowers are fully colored.
Sold Out
V prodeji opět na jaře 2026

Leucanthemum

A classic perennial for early summer bouquets and country gardens. For bouquets, we harvest flowers with firm, smooth central disks. They then last 7–10 days in a vase. Daisy Christine Hagemann has large, pure white, and full flowers.
Sold Out
V prodeji opět na jaře 2026

Caryopteris clandonensis

Small shrubs with fragrant grey-silver shoots and leaves. The strikingly colored flowers are clustered in dense panicles. In the garden, they can evoke a summer atmosphere long into autumn. They tolerate drought very well and love warmth. They fit perfectly into Mediterranean-inspired plantings. Popular with bees, bumblebees, and butterflies. Pagoda Dark pink is an interspecific hybrid valued by florists for its perfectly long and straight stems, with a striking rich pink flower color.
Sold Out
V prodeji opět na jaře 2026
Lze sušit

Echinops bannaticus

Naturally growing from Southern Europe to Turkey and Central Asia, these are decorative and undemanding plants suitable for natural perennial gardens. The spherical flowers attract bees and butterflies. They last a very long time in a vase and look gorgeous in summer bouquets; they are also suitable for drying. Blue Glow has intensely blue flowers.
Sold Out
V prodeji opět na jaře 2026

Verbascum chaixii

Verbascum southern is a native European perennial. It grows on sunny, stony slopes. The cultivar 'Sixteen Candles' has yellow flowers with purple, fuzzy stamens. The leaves are grey-green and felt-like. Like all Verbascum, it's a great attraction for bees and bumblebees.
Sold Out
V prodeji opět na jaře 2026

Gaura lindheimeri

Gaura is a clump-forming perennial native to Texas and Louisiana. In our climate, it behaves more like a short-lived perennial. It combines beautifully with grasses and adds lightness and airiness to flowerbeds. It is an excellent food source for insects. Tiny, butterfly-like flowers bloom tirelessly from June until the first frosts. For bouquets, we harvest as soon as the first two to three flowers open on the stem. Siskiyou Pink is a beautiful variety with rose-red flowers on slightly arched stems. Less hardy than white-flowering varieties. The red-spotted leaves are also interesting.
Sold Out
V prodeji opět na jaře 2026

Solidaster hybride

Solidaster is a perennial resulting from a cross between goldenrods and asters. It is attractive for its color-changing flowers. They bloom bright yellow and change through creamy to milky white. The florets are slightly larger than those of goldenrod. It is suitable for cutting and lasts 10 days in a vase.
Sold Out
V prodeji opět na jaře 2026

Filipendula hybridum

A magnificent plant with a feathery, cymose inflorescence of sweet pink color. It smells pleasant, and the pinnate dark green leaves are also aromatic. Unlike meadowsweet, it loves moisture, making it excellently suited for waterlogged areas and ponds. It lasts 7 days in a vase. The cultivar 'Kahome' blooms with fluffy, intensely pink clouds of flowers that spread a honey-like scent around them.
Sold Out
V prodeji opět na jaře 2026

Knautia macedonica

Chrastavec makedonský je bohatě a dlouze kvetoucí nenáročná trvalka. Jeho divoká forma pochází z Balkánu, kde roste na loukách a v křovinách. Red Knight v záhonech okouzluje štíhlými vysokými stonky, které nesou tmavě vínové květy. Hodí se do přírodně pojatých slunných až polostinných záhonů a do lučních kytic. 
Sold Out
V prodeji opět na jaře 2026

Helleborus orientalis

Hellebores are evergreen perennials that form slowly spreading clumps of leathery, dark green leaves. Stems typically bear four to five flowers. They bloom very early, in late winter and early spring. They are suitable for vases only after prominent seed pods form in the center of the flower and the flower matures. Before that, they tend to wilt and the stems cannot hold the flower upright. All parts of the plant are poisonous. The semi-double flowers of Hellebore Double Ellen Picotee are colored white and light pink with a purple-burgundy border.
Sold Out
V prodeji opět na jaře 2026

Penstemon digitalis

Penstemon digitalis 'Husker Red' is a relatively robust and long-lived perennial with attractive bronze-purple foliage and white-purple flowers. The decorative faded inflorescences will adorn your flowerbeds until winter. However, the plant can also be cut back after flowering to encourage new growth. We recommend pruning Penstemon after blooming to encourage new growth. It lasts 5 to 7 days in a vase.
Sold Out
V prodeji opět na jaře 2026

Knautia macedonica

Chrastavec makedonský je bohatě a dlouze kvetoucí nenáročná trvalka. Jeho divoká forma pochází z Balkánu, kde roste na loukách a v křovinách. V záhonech okouzluje štíhlými vysokými stonky, které nesou pastelově vínové a růžové květy. Hodí se do přírodně pojatých slunných až polostinných záhonů a do lučních kytic. 
Sold Out
V prodeji opět na jaře 2026

Lythrum virgatum

Purple Loosestrife (Lythrum virgatum) is more elegant and slender than the better-known Purple Loosestrife (Lythrum salicaria). It also has much airier inflorescences. Its leaves are smooth and narrower, turning a deep red in autumn. Rose Queen is a very pretty, low-growing loosestrife variety with delicate flower spikes. It copes well with slightly less moisture and can be planted in regular beds as well as at the edges of ponds.
Sold Out
V prodeji opět na jaře 2026

Anemone hybrida

Anemones belong to the same family as buttercups. Their elegant flowers on long, slender stems can enliven and brighten late summer and autumn beds. They stand out against a darker background of shrub groups and will also be grateful for their partial shade. The Czech Perennial Society chose autumn anemones as the perennial of the 2022 season. They last 7 days in a vase. Whirlwind is a historic variety bred in 1887 in the USA. It has semi-double pure white flowers, often with inner curled petals, and a compact, strictly upright growth. The flowers are very durable.
Sold Out
V prodeji opět na jaře 2026

Anemone hybrida

Anemones come from the same family as buttercups. With their elegant flowers on long slender stems, they can brighten and enliven late summer and autumn beds. They stand out against a darker background of shrub groups and will also be grateful for their partial shade. The Czech Perennial Society chose autumn anemones as the perennial of the 2022 season. They last 7 days in a vase. Lorelei has semi-double flowers in a delicate light pink tone.
Sold Out
V prodeji opět na jaře 2026

Coreopsis

A beautiful delicate perennial native to North America. Striking, relatively large but delicate flowers beautifully complement a rich, fluffy cloud of tiny leaves. It forms compact bushes and is ideal for the front of flower beds. Coreopsis are naturally short-lived perennials. Their lifespan can be partially influenced by choosing a suitable location and care throughout the season. The cultivar Limerock Dream is characterized by a delicate warm pink color. Lasts about a week in a vase.
Sold Out
V prodeji opět na jaře 2026

Aster × hybridus

These autumn asters were bred specifically for floristic use. They are characterized by strong, straight, and upright stems and an exceptionally abundant display of flowers. Primavera blooms with larger (about 40 mm) pinkish-purple flowers. Vase life is 10 days.
Sold Out
V prodeji opět na jaře 2026

Lobelia fulgens

A perennial for lovers of striking colors and dramatic contrasts. Unmissable with its dark wine-red stems and leaves, and vibrant red flowers. All parts of the lobelia are poisonous.
Sold Out
V prodeji opět na jaře 2026

Delphinium hybrida

Delphiniums are a classic and a dominant feature among perennial flower beds. They are often seen alongside roses and peonies. To truly stand out, they need ample space and regular fertilization. Their beauty can be enjoyed in beds, bouquets, and even dried, as the flowers retain their rich color well. They last 7 days in a vase and are sensitive to ethylene released from ripening fruit.
Sold Out
V prodeji opět na jaře 2026

Cultivation

Potřebuje slunné stanoviště na místě s výživnou a propustnou půdou.

The information given is based on our experience, please use it as a guide only. Times may vary depending on the season, climate, location, sowing and transplanting dates and possibly also the conditions in the greenhouse/greenhouse. We always recommend testing how the plant performs in your conditions. Please do not take this as a guarantee.

Show all

Click to view the full growing instructions.

Photos
in time

See how the seedling looks over the course of a year.

Mallow Brilliant - 23. 10. 2025
23. 10. 2025
Mallow Brilliant - 9. 10. 2025
9. 10. 2025
Mallow Brilliant - 11. 9. 2025
11. 9. 2025
Mallow Brilliant - 19. 8. 2025
19. 8. 2025
Mallow Brilliant - 29. 7. 2025
29. 7. 2025
Mallow Brilliant - 11. 7. 2025
11. 7. 2025
Mallow Brilliant - 24. 6. 2025
24. 6. 2025
Mallow Brilliant - 13. 5. 2025
13. 5. 2025
Mallow Brilliant - 3. 4. 2025
3. 4. 2025
Mallow Brilliant - 2024
2024
Mallow Brilliant - 2024
2024
Mallow Brilliant - 2024
2024
Mallow Brilliant - 2024
2024

More products in category Slézovník

Sidalcea

False Mallow is a beautiful long-blooming perennial. Its inflorescence resembles miniature hollyhocks or mallow. It pairs well with classic rose combinations as well as wilder beds with grasses.
Sold Out
V prodeji opět na jaře 2026

Sidalcea hybride

The tree mallow is a beautiful, long-flowering perennial. Its inflorescence resembles miniature hollyhocks or mallow. It is well-suited for classic combinations with roses and for wilder beds with grasses. The garden cultivar 'Elsie Heugh' has beautiful, delicate pink flowers with fringed edges.
Sold Out
V prodeji opět na jaře 2026
Akce

Sidalcea hybride

The tree mallow is a beautiful, long-flowering perennial. Its inflorescence resembles miniature hollyhocks or mallow. It is well-suited for classic combinations with roses and for wilder beds with grasses.
Sold Out
V prodeji opět na jaře 2026

More products in category Trvalky

Gaura lindheimeri

Gaura is a clump-forming perennial native to Texas and Louisiana. In our climate, it behaves more like a short-lived perennial. It combines beautifully with grasses and adds lightness and airiness to flowerbeds. It is an excellent food source for insects. Tiny, butterfly-like flowers bloom tirelessly from June until the first frosts. For bouquets, we harvest as soon as the first two to three flowers open on the stem. Siskiyou Pink is a beautiful variety with rose-red flowers on slightly arched stems. Less hardy than white-flowering varieties. The red-spotted leaves are also interesting.
Sold Out
V prodeji opět na jaře 2026

Salvia nemorosa

This species of sage (Salvia nemorosa) originally comes from the steppe regions of Central and Eastern Europe. It forms richly flowering small clumps with straight, upright stems. In flowerbeds, it looks best in groups. Traditionally, it is planted as an accompaniment to roses due to their similar flowering time. However, it will also look great in mixed, drought-tolerant steppe plantings with grasses. It lasts 7 days in a vase. The Caradonna cultivar stands out for its long flowering period and dark, almost black-purple stems with small purple flowers and dark purple bracts. If pruned after flowering, it will bloom again in late August and September.
Sold Out
V prodeji opět na jaře 2026

Achillea millefolium

An original wild perennial with a large distribution area from Europe to Siberia. Suitable for natural and wild plantings. It grows in meadows and dry grassy areas. A very adaptable and undemanding plant, it grows in clumps and spreads by runners. Pruning after the first bloom will encourage new flowers. For bouquets, harvest when the florets are fully open. It lasts 10 days in a vase. Terracotta features ochre, shades of orange and yellow, and grey-green leaves.
Sold Out
V prodeji opět na jaře 2026

Salvia nemorosa

This type of sage originally comes from the steppe regions of Central and Eastern Europe. It forms richly flowering small clumps with straight, upright stems. In beds, it looks best in groups. Traditionally, it is planted, for its coinciding blooming period, as an accompaniment to roses. However, it will look equally good in mixed drought-tolerant steppe plantings with grasses. It is an excellent food source for bees. It lasts 7 days in a vase. The cultivar Ostfriesland blooms in a strikingly dark violet-blue color.
Sold Out
V prodeji opět na jaře 2026

Salvia nemorosa

This species of sage originally comes from the steppe regions of Central and Eastern Europe. It forms richly flowering small clumps with straight, upright stems. In flower beds, it looks best in groups. Traditionally, it is planted as an accompaniment to roses for its coincident flowering time. However, it will also look great in mixed xerophilous steppe plantings with grasses. It is an excellent food source for bees. It lasts 7 days in a vase. Amethyst is an elegant variety with long stems and an unusual pink flower color for sage.
Sold Out
V prodeji opět na jaře 2026

Anemone hybrida

Anemones belong to the same family as buttercups. Their elegant flowers on long, slender stems can enliven and brighten late summer and autumn beds. They stand out against a darker background of shrub groups and will also be grateful for their partial shade. The Czech Perennial Society chose autumn anemones as the perennial of the 2022 season. They last 7 days in a vase. Whirlwind is a historic variety bred in 1887 in the USA. It has semi-double pure white flowers, often with inner curled petals, and a compact, strictly upright growth. The flowers are very durable.
Sold Out
V prodeji opět na jaře 2026

Anemone hybrida

Anemones come from the same family as buttercups. With their elegant flowers on long slender stems, they can brighten and enliven late summer and autumn beds. They stand out against a darker background of shrub groups and will also be grateful for their partial shade. The Czech Perennial Society chose autumn anemones as the perennial of the 2022 season. They last 7 days in a vase. Lorelei has semi-double flowers in a delicate light pink tone.
Sold Out
V prodeji opět na jaře 2026

Scabiosa caucasica

This perennial scabious grows wild on mountain meadows and rocky slopes of the Caucasus, northern Iran, and Turkey. In gardens, it is grown for its charming large bowl-shaped flowers. It has strong, long stems, which makes it a perfect perennial for cutting. We harvest it best while the central florets are still tightly closed, then it will last up to 10 days in a vase. Spent flowerheads can also be dried and are well-suited for use. Fama White has pure white flowers.
Sold Out
V prodeji opět na jaře 2026

Helleborus orientalis

Hellebores are evergreen perennials that form slowly spreading clumps of leathery, dark green leaves. Stems typically bear four to five flowers. They bloom very early, in late winter and early spring. They are suitable for vases only after prominent seed pods form in the center of the flower and the flower matures. Before that, they tend to wilt and the stems cannot hold the flower upright. All parts of the plant are poisonous. Double Ellen White is an almost pure white, double-flowered hellebore. Its petals are slightly wavy, and the lower row of petals is subtly tinted green.
Sold Out
V prodeji opět na jaře 2026

Perovskia atriplicifolia

Perovskia are sparsely branched subshrubs, native to regions from Afghanistan to Tibet. They grow in open, sunny, rocky and stony habitats. Their striking features are their white felted shoots and greyish aromatic leaves. They are suitable for sunny beds with other drought-tolerant perennials, where they create interesting structures even in winter months. Little Spire is a smaller cultivar also suitable for pots with a soil volume of 7 liters or more.
Sold Out
V prodeji opět na jaře 2026

Achillea millefolium

An original wild perennial with a large distribution area from Europe to Siberia. Suitable for natural and wild plantings. It grows in meadows and dry grassy areas. A very adaptable and undemanding plant, it grows in clumps and spreads by runners. Cutting back after the first bloom will encourage new flowers. For bouquets, harvest when the flowers are fully open. Lasts 10 days in a vase. Summer Pastels features a varied and delicate range of colors from white and vanilla to salmon, brick, and bronze.
Sold Out
V prodeji opět na jaře 2026

Sedum spectabile

A very hardy and long-lived perennial with an almost year-round effect. It forms upright clumps, and its flowers attract bees and butterflies. The 'Brilliant' cultivar is characterized by bushy growth and a striking pink color.
Sold Out
V prodeji opět na jaře 2026

Salvia nemorosa

This type of sage originally comes from the steppe regions of Central and Eastern Europe. It forms richly flowering small clumps with straight, upright stems. In beds, it looks best in groups. Traditionally, it is planted as an accompaniment to roses due to its matching blooming period. However, it will also look good in mixed xerophilous steppe plantings with grasses. It is an excellent source of nectar for bees. It lasts 7 days in a vase. Schneehügel blooms white.
Sold Out
V prodeji opět na jaře 2026

Lavandula angustifolia

Lavender is a must-have for every sunny herb garden. Classified as subshrubs, they are valued in gardens for their winter habit. They add not only color and texture to beds but also an unmistakable scent. They will look good with lower drought-tolerant grasses and perennials. A compact cultivar with dark flowers.
Sold Out
V prodeji opět na jaře 2026

Helleborus orientalis

Hellebores are evergreen perennials that form slowly spreading clumps of leathery, dark green leaves. Stems typically bear four to five flowers. They bloom very early, in late winter and early spring. They are suitable for vases only after prominent seed pods form in the center of the flower and the flower matures. Before that, they tend to wilt and the stems cannot hold the flower upright. All parts of the plant are poisonous. Double Ellen Red is a double-flowered hellebore with rounded petals of dark burgundy-red with a lighter undertone on the lower row of petals.
Sold Out
V prodeji opět na jaře 2026
Lze sušit

Eryngium planum

A perennial that finds its use in naturalistic steppe and gravel beds. It attracts bees, bumblebees, and butterflies. It's floristically valuable for its flowers with striking bracts, which are also perfect for drying. The roots of some species were once candied as sweets in England and France and added to pastries and jellies. In herbal medicine, it was used, among other things, as an aphrodisiac, hence its folk name 'male fidelity'.
Sold Out
V prodeji opět na jaře 2026

Scabiosa caucasica

This perennial scabious grows wild on mountain meadows and rocky slopes of the Caucasus, northern Iran, and Turkey. In gardens, it is grown for its charming large bowl-shaped flowers. It has strong, long stems, which makes it a perfect perennial for cutting. We harvest it best while the central florets are still tightly closed, then it will last up to 10 days in a vase. Spent flowerheads can also be dried and are well-suited for use. Fama Deep Blue has violet-blue flowers.
Sold Out
V prodeji opět na jaře 2026

Echinacea purpurea

A valuable garden and medicinal perennial, native to North America. The spiky flower cones are an irresistible magnet for butterflies. They last 7–10 days in a vase. After the petals are picked, the stems with the central cones can be dried or used in fresh bouquets as an interesting element. White Swan blooms with milky white flowers with brown-orange centers. The petals are not spread out completely horizontally; they bend slightly downwards.
Sold Out
V prodeji opět na jaře 2026

Sedum spectabile

A very hardy and long-lived perennial with an almost year-round effect. It forms upright clumps, and its flowers attract bees and butterflies. 'Matrona' tolerates nutritious soil well, provided it is well-drained. It has firm and stable stems.
Sold Out
V prodeji opět na jaře 2026

Anemone hybrida

Anemones belong to the same family as buttercups. With their elegant flowers on long, slender stems, they can brighten and enliven late summer and autumn beds. They stand out against the darker background of shrub groups and will also be grateful for their partial shade. The Czech Perennial Society chose autumn anemones as the perennial of the 2022 season. They last 7 days in a vase. Königin Charlotte is a robust, taller variety bred back in 1898. It has strong, firm stems and semi-double, large, purple-pink flowers. The outer sides of the silky smooth petals are tinged with purple.
Sold Out
V prodeji opět na jaře 2026