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Cosmos, 'Rubenza', Cosmos bipinnatus - 50 or 200 seeds avg
Large blooms in dreamy shades of cranberry, ruby-red, and rose. Easy to grow.
Planting Tips:
- A warm-season annual that prefers full sun.
- Plant after danger of frost and once soil has warmed.
- Start seeds indoors 4-6 weeks before planting date or cast seeds directly in the garden, spacing 8-12".
- Cover seed with soil; allow 5-10 days to germinate.
- Grows to 36-48” tall.
- Pinch when 8" tall to establish a more robust, branching plant.
- 85-100 days to bloom.
Harvesting Tips:
- Cosmos make an excellent cut flower when harvested just as they crack open.
- Make the cut at the base of the stem to encourage regrowth.
Lisa (verified owner) –
Lisa F –
Extremely pleased w/ first time seed starting cosmos, first time soil blocking. These and 4 other types of cosmos from TGW sprouted in 24 hrs on a heat mat. I was giddy w excitment. Mid-late July planting out. I may not get any blooms, perhaps a few. For all the firsts, and keeping them alive to get to plant out, I consider it all success. I have enjoyed the new experience of L.M.Z’s process of growing flowers. Thanks TGW.
Beth –
First time growing Cosmos. I love them but I didn’t plant enough.
Robyn W. (verified owner) –
Growing nicely but hasn’t bloomed yet. Will keep you posted.