Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Ranunculaceae
Native
Asia
Life Cycle
Perennial
Plant Height
Medium (12" - 24")
Flower Color
Mixed
Bloom Season
Late spring to summer
Further Information
Plant Characteristics
- Attracts Pollinators
- Cut Flower
- Dwarf Variety
- Good for Containers
Plant Resistance
Deer Resistant
About Butterfly Blend Delphinium Seeds
Delphinium grandiflorum
1" single, cup-shaped flowers are marine blue, light blue, soft rose, and white, on multiple stems.
Planting Delphinium
Plant Spacing
A group of 3 seeds every 10" – 12"
Hardiness Zones
3, 4, 5, 6, 7
Light Required
Full sun to part shade
Plant Height
Medium (12" - 24")
Planting Depth
¼"
Planting Details
| Seed Depth | ¼" |
|---|---|
| Seed Spacing | A group of 3 seeds every 10" – 12" |
| Thinning | When 3" tall, thin to 1 every 10" – 12" |
| Germination | 12– 18 days |
| Start Indoors | 6 to 8 weeks before your average last frost date. |
| Direct Sow | RECOMMENDED. 1 to 2 weeks after your average last frost date, and in Mild Climates, as late as 2 months before your average first frost date. |
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: 8 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
Slide 1 selected
Search
Rating
10 reviews
- Lindsay F.Verified ReviewerRated 5 out of 5 stars4/27/26New favorite
I grew these last year for the first time. I started indoors the end of Feb. and planted outside the end of April. They also overwintered well for me. Zone 6b.
Which best describes you as a gardener? IntermediateBIBotanical Interests5/8/26Hey Lindsay,
We're so happy to hear that our Butterfly Blend Delphinium Seeds became your new favorite! What a fantastic success story - from starting them indoors at the end of February to watching them thrive after planting outside in April, and then having them overwinter beautifully in your zone 6b garden! Thanks for sharing your amazing growing success with us! Keep on growing 🌻️
- Deborah B.Verified BuyerRated 5 out of 5 stars2/13/255 Stars
I love the YouTube channels and the Beet. I got a tray,humidity dome, and 6 6-cells for Christmas and then ordered another set of the same and they are brimming with seedlings for the garden this year. The only thing is that one of the humidity domes was cracked in the corner when received and one of the trays cracked when I lifted it to check for water in the bottom tray. Shipping misstep for the humidity dome and my fault for not thinking about how heavy the tray with the 6-cells would be when lifting up the corner. My seeds have all done very well. I think you two and your company are very helpful, not to mention funny to watch. Thanks for the great work!
- Inge K.Rated 5 out of 5 stars4/15/245 Stars
Started Butterfly Blend Delphinium from seeds last year (2023). The flowers were beautiful. Planted in a container, and was pleased to see them make their appearance in March 2024.
I'm happy when anything survives winter!! Colorado zone 5b, 7500 ft elevation.
Which best describes you as a gardener? Intermediate - James E.Rated 5 out of 5 stars4/9/245 Stars
Just a heads up, the color is determined by soil PH! You can change their color by either adding lime or sulfur to your soil!
Which best describes you as a gardener? Expert - Lily ..Rated 5 out of 5 stars1/28/245 Stars
Absolutely love these. To be honest, I only wanted blue ones, and lucky for me the only ones that germinated were the marine blue and the light blue (I sowed them a year after buying, so I got poor germination--- delphium seeds do not keep long so be sure to sow them the same season you buy). The colors are gorgeous and they self seed readily, allowing me to transplant seedlings in subsequent seasons to fill out the bed.
Which best describes you as a gardener? Intermediate