Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Campanulaceae
Native
Africa
Life Cycle
Perennial
Plant Height
Short (Under 12")
Flower Color
Blue
Bloom Season
Spring to frost
Further Information
Plant Characteristics
- Attracts Beneficial Insects
- Attracts Pollinators
- Good for Containers
Plant Resistance
Deer Resistant
About Lobelia
Lobelia erinus
½" dark blue flowers heavily massed above low-growing foliage.
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: 19 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 0
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Rating
Which best describes you as a gardener?
22 reviews
- ElizabethVerified BuyerRated 5 out of 5 stars4/2/265 Stars
These had great germination rates. I started them indoors, and a few of them were already flowering by the time it was warm enough to plant them out. They were pretty forgiving as long as the soil stayed moist. The seeds are tiny, so it's hard not to overcrowd when you first sow.
The flowers are purple in the sun and an almost iridescent blue in the shade.
Which best describes you as a gardener? IntermediateBIBotanical Interests4/4/26Hey Elizabeth,
We're so excited to hear about your fantastic success with the Crystal Palace Lobelia Seeds! It sounds like you got amazing germination and even had some early bloomers - what a treat to see flowers before transplant time! You're absolutely right about those tiny seeds being tricky to sow without overcrowding, but it looks like you handled them perfectly. We love that you noticed how the flowers shift from purple in the sun to that gorgeous iridescent blue in the shade - that color-changing magic is one of our favorite things about these beauties! Keep on growing 🌻️
- JillianRated 5 out of 5 stars3/13/265 Stars
Lots of seeds for such a great price. And the company is wonderful they offer a lot of information on their seed packets. It comes with a growing guide. And a free " lettuce " thank you seed packet. They are responsive via email with their customer service. Totally recommend buying from this company
- Pat C.Verified BuyerRated 5 out of 5 stars2/9/26Lovely blue color
I use this in a simi shaded area that is moist and it does really well for me. By the end of summer is is just a mass of rare blue color in the flower bed.
Which best describes you as a gardener? IntermediateBIBotanical Interests2/9/26Hey Pat,
Thank you so much for taking the time to share your wonderful review of our Crystal Palace Lobelia Seeds! How amazing that you've found the perfect spot for them in your semi-shaded, moist area - it sounds like they're absolutely thriving there! We love hearing how they transform into "just a mass of rare blue color" by the end of summer. That gorgeous blue really is something special, isn't it? Thank you for choosing us and for sharing your blooming success with us. Keep on growing 🌻️
- Linda M.Verified BuyerRated 5 out of 5 stars10/18/25major success!
Love the lobelia. always blooms!
Which best describes you as a gardener? ProfessionalBIBotanical Interests10/21/25Hey Linda,
Thank you so much for this fantastic 5-star review! "Major success" and "always blooms" is exactly what we love to hear about Crystal Palace Lobelia Seeds - and what an incredible testament to their reliable, continuous flowering performance!
Your consistent blooming success will be so inspiring for other gardeners who want to discover just how rewarding and dependable Crystal Palace Lobelia Seeds can be for creating those stunning displays that keep delivering beautiful blue flowers all season long!
Keep on growing 🌻️
- Laura H.Verified BuyerRated 5 out of 5 stars9/14/25Stunning Little Guys
These are very easy to sprout and are excellent container plants. The flowers can range from a blue to dark purple depending on what plants are around it. If you want to aim for a more blue like appears, planting them with the Tiny Tim Sweet Alyssum will help. The foliage can also look very dark with is a wonderful contrast with the bloom. I planted some Crystal Palace Lobelia with coleus this year that really highlighted to dark foliage and intense bloom color of the lobelia. LOVE these plants for their versatility in containers
Which best describes you as a gardener? IntermediateBIBotanical Interests9/15/25Hey Laura,
Wow, thank you for such a detailed and helpful review! You've really captured what makes Crystal Palace Lobelia so special - that gorgeous color variation and stunning dark foliage contrast!
We absolutely love your companion planting tips! The idea of pairing them with Tiny Tim Sweet Alyssum to bring out those beautiful blues is brilliant, and your combination with coleus sounds like it created such a striking display. These are exactly the kinds of insights that help fellow gardeners create those show-stopping container arrangements!
Thanks so much for sharing your experience and growing wisdom with us and other gardeners. Reviews like yours help everyone get the most out of these stunning little plants!
Keep on growing 🌻️