Simply Garden
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$19.99
Cosmos Rubenza Seeds – Bold Blooms with Unusual Shading – RHS Award of Garden Merit – Half Hardy Annual – for Your Beautiful Garden
★★★★★
$19.99
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3 availableStyle: Cosmos Rubenza Seeds
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About this item
- COSMOS RUBENZA SEEDS: A half hardy annual, flowers the same year as sown. The easy to grow plants flower over a long season. Dark ruby red blooms change to old rose as they mature.
- SOW: February to May, FLOWERS: June to October, SPACING: 45cm, HEIGHT: 90cm, SUNLIGHT: Full Sun, SEEDS: 50 Approx.
- SOW INDOORS: For surest results, 0.5cm deep, in trays of compost. Water well and place in a warm position, a temperature of 15-20℃ is ideal. Keep moist. Seedlings usually appear in 14-21 days. Transplant seedlings 5cm apart to other trays when large enough to handle (Always handle by a leaf, never by the stem.) Grow on in cooler, but not cold conditions. Gradually accustom young plants to outside conditions (avoid frosts), before planting out 30cm apart, when frosts are over.
- SOW OUTDOORS: For ease, where they are to flower, 1.5cm deep into finely prepared soil which has already been watered. Thin seedlings to 30cm apart. Water well until plants are established. Remove dead flowers to prolong flowering season.
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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