Botanical Interests
Mammoth Blend Sweet Pea Seeds
Mammoth Blend Sweet Pea Seeds
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Product Details
Product Details
Aptly named, Mammoth sweet peas have extra-large flowers with lengthy stems—perfect for cutting! The subtle, sweet scent is delightful, too. Developed in the 1980s from Early Multiflora Gigantea, a Spencer-type sweet pea, this variety boasts drought and heat resistance, which results in a longer season of blooms. Attracts pollinators. Deer resistant. Caution: Most parts of this plant are toxic if ingested.
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- Variety Info
- Sowing Info
Variety Info
Family: Fabaceae
Type: Sweet Pea (Learn more)
Native: Italy
Hardiness: Frost-tolerant annual
Exposure: Full Sun to Part Shade
Bloom Period: Spring to Summer
Plant Dimensions: 5'–6'
Variety Info: 1''–2" flowers with moderate scent in shades of rose, blue, salmon, scarlet, white, lavender, and burgundy.
Attributes: Attracts Pollinators, Drought Tolerant, Heat Tolerant, Frost Tolerant
Sowing Info
When to Sow Outside: RECOMMENDED. Cold Climates: 4 to 6 weeks before your average last frost date. Mild Climates: Late fall to early winter for spring bloom. Ideal soil temperature is 55°–65°F.
When to Start Inside: 4 to 6 weeks before your average last frost date.
Days to Emerge: 10–21 Days
Seed Depth: 1"
Seed Spacing: A group of 3 seeds every 6"
Thinning: When 3" tall thin to 1 every 6"
- LisaRated 2 out of 5 starsMay 9, 20242 Stars
I sowed 3 seeds each at the base of 4 canes in Miracle-Gro Organic Choice Potting Mix with Compost in a container. Almost all germinated. Then one by one they ALL started to fall over like this and die. All of them. What happened? I've never had this much trouble growing seeds- aren't supposed to be sweet peas fairly easy to grow? What am I doing wrong? Can someone from Botanical Interests respond and help me understand what happened?
Which best describes you as a gardener? Intermediate - Lisa ..Rated 2 out of 5 starsMay 9, 20242 Stars
I sowed three seeds at the base of four canes in nice, loose, organic potting soil in a container. Almost all germinated. Then one by one they started to fall over like this and die. I've never had such problems growing from seed- and these should be easy to grow. What happened? too much water? Disappointing- these were going to be flanking an entrance as part of a composition of plants there.
Which best describes you as a gardener? Intermediate - Alma H.Verified BuyerRated 5 out of 5 starsMar 23, 20245 Stars
I think I might have waited too long to direct sow the sweet pea. It might get too hot before it blooms. It is growing much slower than my snap peas.
Which best describes you as a gardener? Beginner - BriannaVerified BuyerRated 5 out of 5 starsAug 26, 2025Easy to germinate, didn’t work out for me
These germinated well, were beautiful in bloom, but unfortunately didn’t work out for where I had them. I have a very dry and hot south facing garden and these would have been my best option for a sweat pea cultivar. Too hot though so I’m bummed I didn’t get to see them at their best.
Which best describes you as a gardener? IntermediateEGEpic GardeningAug 26, 2025Hey Brianna,
Thank you so much for sharing your experience with our Mammoth Blend Sweet Pea Seeds! We're so glad to hear they germinated well for you and gave you beautiful blooms - that's wonderful! We totally understand the challenge with that hot, dry, south-facing spot though. Sweet peas can definitely be tricky in those intense heat conditions, even the more heat-tolerant varieties. It sounds like you really know your garden conditions well and were thoughtful about your variety choice. We appreciate you taking the time to share this helpful insight about growing conditions - it's really valuable for other gardeners who might be dealing with similar hot, dry spots! Keep on growing 🌻️
- Dorian D C.Verified BuyerRated 5 out of 5 starsFeb 12, 20255 Stars
my daughter told me about your company .. she only buys seeds from you! so I thought I'd give it a shot ..
