Cosmos Berries & Snow Mix

Cosmos are extremely versatile and look beautiful in mixed flower beds. They complement other annuals perfectly, such as Zinnias, Sunflowers, Nasturtiums, or Nigella. Thanks to their airy growth habit and delicate, finely cut leaves, they create a perfect contrast to plants with large, full leaves. Additionally, with their height of 60 to 120 cm, they make an excellent backdrop for lower-growing flower species.

Cosmos have moderate water requirements. Once they germinate and the seedlings become stronger, they become very drought-tolerant plants. It is enough to water them only when the soil has noticeably dried out.

Overwatering or constant moisture is explicitly harmful to them and can lead to root rot. Pay attention to watering especially in the first few weeks after sowing and then mainly only during truly extreme summer heat.

Yes, we highly recommend pinching back Cosmos. When the plant is about 30 cm tall, don't be afraid to pinch off the main growing tip (just above a pair of leaves). Thanks to this, the plant will branch out beautifully, become sturdier, and produce many more stems with flowers.

Definitely! Cosmos is the ideal annual for beginners. They practically grow themselves. If you follow the correct sowing time (after the last spring frosts) and choose a sunny spot with well-drained soil, they will reward you with a flood of flowers from June to October. They have moderate moisture requirements, so regular watering once the soil dries out is sufficient. The only thing they need is support, as they can reach a height of 60 to 120 cm and strong winds could break them.

If your Cosmos seeds are not germinating, several mistakes may have occurred. The most common ones include:

• Too low temperature: Cosmos need a temperature of around 18–22 °C to germinate successfully. If you sowed them in a flowerbed too early in the spring and cold days followed, germination will slow down or stall.
• Seeds dried out: During the first 4–8 days before the seeds sprout, the soil must not dry out completely.
• Sowing too deep: Seeds should only be lightly covered with soil; we recommend placing about 1–2 seeds in one hole. If they are sown too deep, they lack the strength to push through the layer of soil.

This problem is usually caused by too many nutrients in the soil, especially an excess of nitrogen. Cosmos are naturally adapted to poorer, sandy soils. If you plant them in very fertile or freshly fertilized soil, the plant puts all its energy into growing green leaves and produces very few flowers.

Do not fertilize Cosmos during the season and try sowing them in a less fertilized spot next year. Another reason might be a lack of sun – they need a sunny location for abundant flowering.

Although Cosmos is hardy, it can occasionally be troubled by pests. Especially young seedlings in the spring attract slugs and snails. We recommend protecting the seedlings or placing barriers made of ash or eco-friendly granules around them. During the summer, aphids may appear on the stems—these can usually be dealt with by carefully spraying them off with a jet of water or using a soap spray.

Regarding diseases, humid and muggy weather can lead to powdery mildew (white coating on leaves) or grey mold (Botrytis cinerea). The best prevention is not to keep the plants too close to each other (maintain a spacing of 20–30 cm) and to water them at the roots, not over the leaves.

Yes, the Berries & Snow Mix is an exclusive mixture created right here at Loukykvět! The flowers, which have a respectable average diameter of 7 cm, will delight you in shades of frozen summer fruit. You can look forward to deep cherry, light pink (so-called pink blueberry), and for a perfect contrast, a pure white color.

Our tip: To ensure all these amazing colors are evenly represented in your flowerbed, we recommend sowing the entire packet of seeds at once.

Cosmos is absolutely fantastic for cutting! They last quite a long time in a vase, usually around 5 to 7 days. The best time to harvest flowers is early in the morning or late in the evening when the plant is well-hydrated. Cut the flowers when the buds are starting to color and open (the pollen in the center should not yet be visible). The more flowers you cut, the more the plant will produce.

They are not suitable for drying, however, because the petals are too delicate and fall off once dried.

We have great news for you! Cosmos are completely safe and non-toxic for both humans and pets (dogs, cats, and even horses). Moreover, their flowers are edible! They have a very mild, slightly sweet taste and you can use them to beautifully decorate summer salads, cakes, or refreshing cocktails. They are not aromatic, however, so don't expect a strong scent from them.

Definitely! The open and simple flowers of Cosmos act as a landing pad for bees, bumblebees, and butterflies. The center of the flower is full of easily accessible nectar and pollen. If you want to attract pollinators to your garden and support local biodiversity, sowing this mix is a great choice.

There is theoretically nothing stopping you from growing Cosmos in containers, but there are a few specifics to keep in mind. Cosmos bipinnatus varieties grow quite tall (up to 120 cm in the case of our mix) and develop a more substantial root system.

They therefore need a sufficiently large and deep pot (at least 30–40 cm in diameter) and very good drainage at the bottom. Don't forget to provide them with support in the pot so they don't break in the wind.

Cosmos (Cosmos bipinnatus) have low nutrient requirements and, paradoxically, thrive best in poorer, well-draining, and rather sandy soil. If you plant them in soil that is too rich, they will grow lush foliage but produce very few flowers. They love full sun, where they bloom abundantly, but they can handle partial shade without any issues.

You can approach sowing in two ways. The simplest is direct sowing into a garden bed, which should be done from May (after the 'Ice Saints') to July. Sow the seeds at a depth where they are lightly covered with soil, spaced 20-30 cm apart.

If you want to speed up flowering, you can pre-grow Cosmos at home or in a greenhouse. However, start pre-growing no earlier than 2–4 weeks before the last frosts (roughly in April). Cosmos grow incredibly fast, and a seed starter tray would soon be too small for them. For germination, maintain a temperature of 18–22 °C, and seedlings will appear in just 4–8 days.

Yes, Cosmos self-seeds very readily. If you do not cut off all the faded flowers at the end of the season and let them mature into seeds, they will drop into the soil in the autumn. The following spring, once the soil warms up, you will most likely be surprised by new little seedlings in the same spot.

The frost resistance of the seeds (they survive the winter in the ground) is good, although the adult plant itself will not survive frosts (it will freeze at 0 °C).