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Product Details
Product Details
Famous for it's juicy sweetness, 'Walla Walla' onion seeds traveled from the coast of Italy to Walla Walla, Washington. One of the best onions to enjoy fresh! Long-day onion, but can be grown as an intermediate-day onion because it matures early. High yield and enormous bulbs, make sure to use shortly after harvest.
Your hardiness zone is
- Variety Info
- Sowing Info
- Growing Info
Variety Info
Days to Maturity: 100–125 days
Family: Alliaceae
Type: Long-day sweet onion. (Learn more)
Native: Exists only in cultivation
Hardiness: Biennial grown as an annual
Exposure: Full sun
Plant Dimensions: 4" to 6" slightly-flattened bulbs with 6" to 10" tops
Variety Info: Yellow, slightly flattened, globe onion, 4"–6" in diameter and weighing around 2 lbs. with dry, papery skin and 6"–10" tops. 'Walla Walla' is a bulbing, yellow, long-day, sweet onion with a short storage period.
Attributes: Frost Tolerant
Sowing Info
When to Sow Outside: 4 to 6 weeks before your average last frost date, or as soon as soil can be worked; when soil temperature is at least 45°F.
When to Start Inside: RECOMMENDED. 10 to 12 weeks before your average last frost date. Transplant outdoors 4 to 6 weeks before your average last frost date. The earlier the start, the bigger the bulb. Ideal soil temperature is 60°–85°F.
Days to Emerge: 7–15 days
Seed Depth: ¼"
Seed Spacing: A group of 2 seeds every 6"–8"
Row Spacing: 12"–16"
Thinning: When 2" tall, thin to 1 every 6"–8"
Growing Info
Harvesting: When onion tops have fallen over and turned yellow or brown, they are ready for harvest. Harvest in the morning, lifting onions with a garden fork. Dry them in the garden in the sun for 2 to 3 days, lightly covering the bulbs with straw, or the tops of other onions to prevent sunscald. Cure onions for 3 to 7 days in a dry area with good air circulation. Once dry, cut the roots to 1/4", and the greens to 1" to create a seal, preventing decay.
- Addison y.Verified BuyerRated 5 out of 5 starsMar 12, 2026Honest listing of seeds
Great seeds, great germination. Looking forward to seeing more growth through the growing season
Which best describes you as a gardener? IntermediateEGEpic GardeningMar 15, 2026Hey Addison,
Thank you so much for this fantastic review! We love to hear that our Walla Walla Bulb Onion Seeds are off to such a great start with excellent germination. Keep on growing 🌻️
- Andrea H.Verified BuyerRated 5 out of 5 starsMar 13, 2026Very Satisfied Customer
I Love baked onions. So happy to have seeds.
Which best describes you as a gardener? IntermediateEGEpic GardeningMar 15, 2026Hey Andrea,
Walla Walla onions are absolutely perfect for baking - they get so sweet and tender when roasted. There's nothing quite like the amazing aroma that fills your kitchen when you're baking fresh homegrown onions! Keep on growing 🌻️
- Debra L.Verified BuyerRated 5 out of 5 starsMar 5, 2026Growing well
So far seedlings are doing well. Won't really know until I see a harvest.
Which best describes you as a gardener? IntermediateEGEpic GardeningMar 6, 2026Hey Debra,
We're so happy to hear your Walla Walla Bulb Onion seedlings are doing well! You're absolutely right that the real test comes at harvest time, but healthy seedlings are a fantastic start. Thank you for choosing us and for sharing this encouraging update with us. Keep on growing 🌻️
- Lorey B.Verified BuyerRated 5 out of 5 starsNov 4, 2025Onion seeds
Growing quite well.
Which best describes you as a gardener? Intermediate - Lex ..Verified BuyerRated 5 out of 5 starsMar 23, 20255 Stars
Great germination rate, almost 100%! The onion seedlings look very healthy. I used Fort Vee seedling mix, and am trimming the seedlings for better growth. I’m happy with these!
