Days To Maturity
45
Mature Height in Inches
10 IN
Mature Width in Inches
12 IN
Sun / Shade
Full Sun
Bloom Size
2-3 IN
Mega Bloom® Polka Dot Vinca Seeds
Mega Bloom® Polka Dot Vinca Seeds
Early blooming periwinkle with extra-large flowers |
Bred to tolerate heat and humidity
Shipping details
Ships in 1-2 business days
$6.95
Key Characteristics
Description / Mega Bloom® Polka Dot Vinca Seeds
Days to Maturity: 65 to 75 direct sow; 40 to 45 transplant
All-America Selections (AAS) Winner 2019
Mega Bloom® Polka Dot Vinca is a tender perennial (Zones 10 to 11), typically grown as an annual, offering early summer through fall interest, generally blooming until first frost. Putting on a continuous, showy display, Mega Bloom Polka Dot Vinca produces an abundance of huge 2½- to 3-inch pinwheel-shaped blooms with overlapping snowy white petals and a pink eye. Borne singly or in pairs on short stalks, the phlox-like flowers attract butterflies and other pollinators to the garden.
A Catharanthus roseus cultivar, commonly called periwinkle, Mega Bloom Polka Dot Vinca has a compact, upright, mounded habit of glossy, dark green foliage and a vigorous growth rate. The plants are highly uniform and remain neat and tidy with healthy foliage all season. They are often used as ground cover or edging in beds and borders, but they also make wonderful potted plants.
A favorite of southern gardeners, periwinkle grows best in a full sun to dappled shade location with moist, well-drained soil, but it adapts to a wide range of soils, including dry soil, and conditions, including heat and humidity. However, periwinkle does not tolerate overwatering. The plant is deer, rabbit, and pest resistant. Mega Bloom Polka Dot Vinca was bred to have exceptional tolerance to heat, rain, and phytophthora.
Direct sow vinca seed after the last frost in spring, as soon as the soil is warm, or start seeds indoors 10 to 12 weeks before the last frost date and transplant after all threat of frost has passed and temperatures are consistently above 65°F. Seeds germinate best with soil temperatures over 75°F.
Vinca seeds can also be started indoors and planted outdoors after the risk of frost has passed. If you plan to start your seeds indoors, be sure to check out our Bio Dome Seed Starter Kit. With the Bio Dome, you can control the temperature, light, and soil mix to ensure your seeds become strong for transplant.
Product Details
| SKU | 54104-PK-P1 |
|---|---|
| Genus | Catharanthus |
| Species | roseus |
| Variety | Mega Bloom® Polka Dot Vinca |
| Product Classification | Annuals, Seeds |
| Sun / Shade | Full Sun |
| Bloom Season Start | Early Summer |
| Bloom Season End | Early Fall |
| Bloom Color | White |
| Max Bloom Size | 3.00 |
| Foliage Color | Medium Green |
| Mature Width in Inches | 12.00 |
| Mature Height in Inches | 10.00 |
| Moisture Level | Moist, well-drained |
| Soil Type | Normal, loamy, Poor |
| Days To Maturity | 45.00 |
| Resistance | Heat Tolerant |
| Characteristics | Award Winner, Flower |
| Uses | Baskets, Beds, Border, Containers |
| Discount Exempt | No |
Product Questions
Customer Questions
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Customer Reviews
Top customer reviews
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Never came upThese never came up. I have emailed the company for replacements but haven't heard back
Response from store
We’re so sorry to hear your vinca seeds didn’t come up and that you didn’t receive a timely response to your email—that’s not the experience we want for any of our customers.
We’ve since sent out a replacement packet, and we hope this next round brings better results. If you’d like a few tips to help with germination, here are some helpful pointers specific to vinca:
- Start seeds indoors 10–12 weeks before your last frost.
- Vinca seeds need darkness to germinate, so cover them lightly with about 1/8 inch of soil.
- Maintain a soil temperature of 75–80°F—a heat mat can be very helpful.
- Germination takes 14–21 days.
- Keep the soil evenly moist but not soggy to avoid issues like damping off.
- Once seedlings emerge, provide bright light and ensure good air circulation.
- Harden off gradually before transplanting outdoors into well-drained soil.
Thanks again for giving us the opportunity to make this right. We're here if you have any questions along the way and happy to help however we can. -
DisappointedThey never grew
Response from store
We’re so sorry to hear that the first round of seeds didn’t meet expectations. That’s never the experience we want our customers to have, and we appreciate your patience.
A fresh packet of replacement seeds was sent out. We hope this new batch performs beautifully for you—please keep us posted on how they do! We’re always happy to help with growing tips if you need them.
Thanks again for giving us another chance to support your garden.
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