Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Ranunculaceae
Native
McKana Giants were bred from North American natives and species from abroad.
Life Cycle
Perennial
Plant Height
Tall (Greater than 24")
Flower Color
Mixed
Bloom Season
Spring to early summer
Further Information
Plant Characteristics
- Attracts Hummingbirds
- Attracts Pollinators
- Cut Flower
Plant Resistance
Deer Resistant
About McKana Giants Blend Columbine Seeds
Aquilegia cultorum
3" or longer spurred blossoms atop thin stems; blue, pink, maroon, purple, and bi-colors
Planting Columbine
Plant Spacing
3–4 seeds every 12"–24"
Hardiness Zones
3, 4, 5, 6, 7, 8, 9
Light Required
Full sun to part shade
Plant Height
Tall (Greater than 24")
Planting Depth
Surface
Planting Details
| Seed Depth | Surface |
|---|---|
| Seed Spacing | 3–4 seeds every 12"–24" |
| Thinning | When 2"–3" tall, thin to 1 every 12"–24" |
| Germination | 21–25 days |
| Start Indoors | RECOMMENDED. 10 to 12 weeks before your average last frost date. |
| Direct Sow | 4 to 6 weeks before your average last frost date, 6 to 8 weeks before your average first frost date, or when soil temperature is 68°–75°F. |
| Growing & Harvesting | For longest vase life, harvest in the morning, choosing stems with about half the flowers open. |
Find Your Frost Date & Grow Zone
Average First Frost Date
October 19
Average Last Frost Date
May 19
Your Hardiness Zone is
5b
Send Your Recommendation
Total 5 star reviews: 5 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
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Rating
Which best describes you as a gardener?
7 reviews
- Rebecca B.Verified BuyerRated 5 out of 5 stars6/3/26Great instructions!
These were stratified per inside packet, and germinated well in the indoor greenhouse. Now growing well in a pot in the yard after hardening off. A long term project, but rewarding.
Which best describes you as a gardener? IntermediateBIBotanical Interests6/3/26Hey Rebecca,
We love hearing about your success with the McKana Giants Blend Columbine Seeds! It sounds like you followed the stratification instructions perfectly and got great results in your indoor greenhouse. The hardening off process is so important, and it's wonderful that they're thriving in their new outdoor pot! You're absolutely right that columbines are a long-term project, but those gorgeous blooms will be so worth the wait. Thanks for sharing your McKana Giants columbine growing success with us! Keep on growing 🌻️
- DebVerified BuyerRated 1 out of 5 stars4/17/26Just opened the package
There were 5 seeds in it!
Which best describes you as a gardener? IntermediateBIBotanical Interests5/3/26Hey Deb,
Thank you so much for taking the time to share your thoughts in a review. I've reached out to you via email to offer assistance. Your feedback is invaluable to us, and we are committed to ensuring your experience is positive. Thank you once again for your input. Keep on growing 🌻️ - Nicole C.Verified BuyerRated 5 out of 5 stars11/23/245 Stars
Can’t wait to plant in Spring!
- Lauren E.Verified BuyerRated 5 out of 5 stars6/24/245 Stars
Waiting on these to mature. Hopefully will be great next year!
Which best describes you as a gardener? Intermediate - Catharin S.Verified BuyerRated 5 out of 5 stars2/6/245 Stars
I winter sowed these seeds and have had fantastic germination with them. They’re not quite big enough to be transplanted out yet, but they’re getting more leaves and look to be strong seedlings. I can’t wait to see them bloom once they’ve gotten established, even though it may be quite a wait since it’s a perennial!