Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Caryophyllaceae
Native
Europe, Asia
Life Cycle
Biennial
Plant Height
Tall (Greater than 24")
Bloom Season
Spring to early summer
About Sweet Rose Magic Sweet William Seeds
Dianthus barbatus
1/2" white, pink, and rose flowers in densely packed flattened heads (3"-5" diameter).
Planting Sweet William
Plant Spacing
A group of 3 seeds every 12"
Light Required
Full sun to part shade. Afternoon shade is beneficial in hot summer areas.
Plant Height
Tall (Greater than 24")
Planting Depth
1/4"
Planting Details
| Seed Depth | 1/4" |
|---|---|
| Seed Spacing | A group of 3 seeds every 12" |
| Thinning | When 1/2" tall, thin to 1 every 12" |
| Germination | 5- 10 days |
| Start Indoors | 8 to 10 weeks before your average last frost date. |
| Direct Sow | 1 to 2 weeks after your average last frost date. Sow up until early summer for bloom the following year. Ideal soil temperature for germination is 68°-72°F. |
| Special Care | Remove all faded blooms (deadhead) to prolong blooming, mulch for the winter, and plant may bloom the following year acting more like a perennial than a biennial. Sow annually to ensure blooms year after year. |
| Growing & Harvesting | For longest vase life, harvest flowers in the morning, choosing stems with just a few open flowers. Change vase water frequently. |
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: 4 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
Which best describes you as a gardener?
5 reviews
- Linda L.Verified BuyerRated 5 out of 5 stars8/3/26A Must Buy!
I have not used this season due to our cool weather & lots of rain. Thinking about starting the seeds in our greenhouse since they come back every year. I have raised them before. They are beautiful & the scent is marvelous. I will update this review if I decide to seed.
Which best describes you as a gardener? IntermediateBIBotanical Interests8/4/26Hey Linda,
Thank you so much for taking the time to share your thoughts in a review. We're thrilled to hear that you think the Sweet Rose Magic Sweet William Seeds are a must buy! It sounds like you've had wonderful success with them before, and we love that you're already thinking about starting them in your greenhouse this season. Those beautiful blooms and that marvelous scent really are something special, and it's awesome that they come back year after year for you. We'd love to hear how your greenhouse seeding goes! Your feedback is invaluable to us, and we're committed to ensuring your experience is positive. Thanks again for being such a loyal gardener! Keep on growing 🌻
- Julia B.Verified BuyerRated 5 out of 5 stars7/17/26Beautiful plants
I started these indoors this spring under grow lights and had almost 100% germination. I was surprised to find that some of them have started blooming this year! I'll have to play around with starting them different ways.
Which best describes you as a gardener? IntermediateBIBotanical Interests7/17/26Hey Julia,
We're so happy to hear about your incredible experience with the Sweet Rose Magic Sweet William Seeds! It's awesome that you got almost 100% germination under those grow lights - that's exactly what we love to hear about seed viability! And how exciting is it that some of them surprised you by blooming this year already? That just shows how vigorous and eager these beautiful plants really are! We totally love that you're already thinking about experimenting with different starting methods - there's nothing better than a grower who gets excited about trying new techniques to see what works best! Thanks for sharing your Sweet William growing success with us! Keep on growing 🌻️
- JamieRated 5 out of 5 stars6/19/265 Stars
Great company great product.
- DonitaRated 5 out of 5 stars1/17/265 Stars
All of the sweet William germinate so well and actually come back bigger every year!
- Cecile C.Verified BuyerRated 4 out of 5 stars9/27/244 Stars
Excellent quality of seeds and large choice.
Which best describes you as a gardener? Expert