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Chinese Aster King Size White – 100 seeds


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High germination rates


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Chinese Aster King Size white, Callistephus Chinensis seeds

A fantastic variety of tall aster with huge double blooms are excellent, long-lasting cut flowers. A must-grow if you love to grow fresh flowers.

Plant information you need to know about China Asters

Plant type: hardy to half-hardy annual (seedlings can handle a light frost in spring)
Height: flowers grow 100 centimeters tall
Position: prefers full sun but will also flower in partial shade
Planting time: from 8-10 weeks before the last frost in seed trays (Mid-February to April is optimal)
Bloom time: starts 110- 120 days after sowing. Sow seeds early to enjoy as much as possible!
Spacing: 25-30 centimeters between each plant
Germination: Takes 7-14 days in temperatures of 15-20°C
Pinching: No it is not needed but you can do it.
Flowers: August to October, depending on the weather
Pollinator-friendly: double flowers are more difficult to pollinate
Recommended seed tray or pot: Start in smaller cell-size seed trays and pot up
The package contains: 100 seeds

How to grow Chinese aster king-size white from seed

Cultivating annual asters from seed is a rewarding, straightforward process. For the best start, we recommend sowing seeds indoors from late winter to early spring. Use seed trays placed on a sunny windowsill or inside a greenhouse to create the perfect environment. While direct sowing in April is possible, we typically avoid this approach in the Netherlands due to our shorter growing season. We prefer to start seeds around early March indoors to germinate.

Interestingly, aster seeds don’t require burial under soil—simply scatter them on top, and you’ll see seedlings sprouting up in no time. However, patience is key, as these plants take their time to grow. By the end of April, after gradually introducing your seedlings to outdoor conditions, they’ll be ready for planting out. Supporting the plants with stakes is essential, especially to accommodate their grand blooms.

For healthy growth year after year, remember to rotate their spot in your garden. This simple practice helps prevent Fusarium Wilt, ensuring your asters remain vibrant. With minimal care, your plants will flourish, adorning your garden with beautiful flowers right up until the early autumn.

When to pick Chinese aster flowers

Do you love gathering blossoms from your garden? If so, the Chinese aster is an ideal choice for you! For the best results, pick these flowers when the petals have just unfolded, but before the yellow pollen becomes visible. Harvesting them at this stage ensures they can brighten up your space for up to 10 days. Remember to strip off any foliage that will sit below the waterline and change the water regularly to keep your flowers fresh and vibrant.

If you are in doubt, don’t hesitate to contact us for growing advice.


Weight 5 g
Plant type

Hardy to half hardy annual

Flower height

100 cm

Plant distance

25 cm

Days to mature

110 – 120 days

Sun requirements

Full sun to partial shade

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Chinese Aster King Size White – 100 seeds


Ordered now, delivered tomorrow

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