Achillea Cassis Seeds - 60 Red Yarrow Perennial
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This guide is for gardeners looking to add long-lasting, richly colored blooms to their garden or for cut flower arrangements. The Achillea 'Cassis' seeds offer distinctive red flower heads that are highly attractive to pollinators. A key consideration is that germination requires consistent warmth and moisture, and seedlings need careful nurturing before planting out.
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| Model Part Number | 60 Red Yarrow Perennial |
|---|---|
| Brand | Marshalls Garden |
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FAQs
How long does it take for Achillea Cassis seeds to germinate?
Germination typically takes 1-2 weeks when kept consistently moist and at a temperature around 20°C.
When is the best time to plant Achillea Cassis outdoors?
Plant outdoors after the last frost has passed in your region, following a hardening-off period.
What is the ideal spacing for Achillea Cassis plants?
Space plants approximately 40cm apart to allow them sufficient room to grow to maturity.
Can Achillea Cassis be grown in containers?
Yes, they can be grown in containers, provided the container is large enough and has good drainage. Ensure consistent watering.
How often should I divide my Achillea Cassis clumps?
It is generally recommended to divide established clumps every 3-4 years to maintain vigor and promote healthy growth.
Are Achillea Cassis flowers suitable for drying?
Yes, Achillea flowers dry well and can be used in dried arrangements. Harvest them when fully open and dry them in a cool, dark place.
Troubleshooting
Seeds not germinating
Ensure consistent moisture and temperature (around 20°C). Seeds may have been covered too deeply or the compost has dried out.
Seedlings are weak or leggy
Provide more light and ensure they are not overcrowded. Pot on into slightly larger pots with fresh compost.
Plants failing to thrive outdoors
Check soil drainage and sun exposure. Ensure plants were adequately hardened off before planting out and have enough space.
Lack of blooms
Ensure the plant is receiving adequate sunlight. Over-fertilization can sometimes reduce flowering; moderate feeding is best.
Pros and Cons
Pros
- Provides vibrant, long-lasting red blooms.
- Excellent for cut flower arrangements.
- Supports local ecosystems by attracting pollinators.
- Returns year after year as a perennial.
- Offers a unique, flat-headed flower shape.
Cons
- Requires specific germination conditions (warmth and moisture).
- Seedlings need careful potting on and hardening off.
- Plants need ample space (40cm apart) when planted out.
- May require division every few years to maintain vigor.
Setup, Compatibility & Care
Sowing Seeds:
- Sow seeds on the surface of pre-watered compost in pots or trays.
- Do not cover the seeds; keep them moist and maintain a temperature of around 20°C.
- Germination typically occurs within 1-2 weeks.
Potting On & Growing On:
- Once seedlings are large enough to handle, carefully pot them into 8cm pots.
- Grow seedlings at a minimum temperature of 10°C.
- Harden off the young plants for 2-3 weeks before planting outdoors.
Planting Out:
- Plant outdoors after the risk of frost has passed.
- Space plants approximately 40cm apart to allow for mature growth.
Care:
- Watering: Keep soil consistently moist during germination and early growth. Water established plants during dry spells.
- Soil: Prefers well-drained soil in a sunny location.
- Pruning: Cut back withered growth in autumn.
- Division: Divide established clumps every 3-4 years to rejuvenate the plants.
Compatibility:
- Well-suited for mixed borders, cottage gardens, and pollinator-friendly planting schemes.
- Complements a wide range of perennial and ornamental grass varieties.