Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Campanulaceae
Native
Africa
Life Cycle
Perennial
Plant Height
Short (Under 12")
Flower Color
Mixed
Bloom Season
Spring to frost
Further Information
Plant Characteristics
- Attracts Beneficial Insects
- Attracts Pollinators
- Good for Containers
Plant Resistance
Deer Resistant
About Cascade of Color Trailing Lobelia Seeds
Lobelia erinus
½" flowers in blue, lilac, red, ruby, and white
Planting Lobelia
Plant Spacing
Sow in groups of 12–20 seeds, 4"–6" apart
Hardiness Zones
10, 11
Light Required
Full sun to part shade
Plant Height
Short (Under 12")
Planting Depth
Press lightly into surface
Planting Details
| Seed Depth | Press lightly into surface |
|---|---|
| Seed Spacing | Sow in groups of 12–20 seeds, 4"–6" apart |
| Thinning | Not required. |
| Germination | 15–20 days |
| Start Indoors | RECOMMENDED. 8 to 10 weeks before your average last frost date. Ideal soil temperature for germination is 60°–70°F. |
| Direct Sow | 1 to 2 weeks after your average last frost date. In Mild Climates, sow in late summer for winter color. |
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: 23 Total 4 star reviews: 2 Total 3 star reviews: 3 Total 2 star reviews: 3 Total 1 star reviews: 4
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Rating
Which best describes you as a gardener?
35 reviews
- Launa M.Verified BuyerRated 5 out of 5 stars5/10/26Great for Hanging Baskets! 9a
I planted these seeds in hanging baskets for my patio and they have filled out just beautifully! Thank you to Epic Gardening on You Tube to suggest these beauties! I planted four ganging baskets and they are all as gorgeous as the baskets posted! Amazing seeds! Don’t sleep on these! I am on the Gulf Coast Zone 9a!
Which best describes you as a gardener? IntermediateBIBotanical Interests5/12/26Hey Launa,
What a great way to plant and display your Cascade of Color Trailing Lobelia Seeds! They look great! So cool that Epic Gardening's recommendation led you to these gorgeous trailing beauties! Thanks for the enthusiastic endorsement and for sharing your incredible lobelia growing success with us! Keep on growing 🌻️
- Peky P.CA, United StatesVerified BuyerRated 1 out of 5 stars5/9/26No luck with flowers!
First time trying to plant flowers from seeds. I had zero success. Nothing germinated. Seeds are also very tiny and I was surprised at how little seeds there was in this pack. I guess I'm used to the vegetable seeds that comes in a lot more. Not sure what went wrong..
Which best describes you as a gardener? IntermediateWho do you grow for? FamiliesHow do you prefer to grow? Raised BedBIBotanical Interests5/15/26Hey Peky,
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 🌻️
- Patrick P.Verified BuyerRated 2 out of 5 stars4/11/26I’m sing’n dah blues!
Although the germination rate was excellent, I only got one color. (blue) not a cascade of colors of red, white, and blue. I wish I would have read the reviews before making this purchase as many others have complained about the same situation.
Which best describes you as a gardener? ProfessionalBIBotanical Interests4/19/26Hey Patrick,
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 🌻️
- Judy B.Verified BuyerRated 5 out of 5 stars9/30/25Did not bloom.
I believe I planted them too late.
Which best describes you as a gardener? IntermediateBIBotanical Interests10/1/25Hey Judy,
Thank you so much for your review! The best time to plant Cambridge Blue Lobelia seeds outdoors in your area is about one to two weeks after your average last frost date, which typically falls around April 11. This means mid to late April, or even early May depending on the spring weather, is generally a good time to sow them directly outside. If you’d like to get a head start, you can begin seeds indoors about 8 to 10 weeks before the last frost and then transplant them once the danger of frost has passed. This helps ensure strong, healthy plants that will thrive through the season. I hope that helps. Please feel free to reach out o us with any questions, or check our blog, www.epicgardening.com, or YouTube for more hints and tips. We're happy to help!
Keep on growing 🌻️ - RichardVerified BuyerRated 3 out of 5 stars8/23/25Dissapointed
Germination was very good however most the flowers were Blue, a few scattered white, and barley any other color. Not a good mix of colors. Would not buy again
Which best describes you as a gardener? IntermediateBIBotanical Interests8/26/25Hey Richard,
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 🌻️