Buying Guide · Updated 2026-06-27
Where to Buy Sweet Pea Plants Online (2026 Guide)
Heritage climbing annual with the most prized perfume in the cutting garden. This guide ranks the five best online nurseries to buy Lathyrus odoratus, with prices, shipping zones, planting season and complete care notes.
Sweet Pea (Lathyrus odoratus) — Overview
The Sweet Pea (Lathyrus odoratus) belongs to the Fabaceae family and is native to Sicily. It is a climbing annual grown chiefly for its pastel mix flowers, which appear in late spring to mid-summer.
Heritage climbing annual with the most prized perfume in the cutting garden. Whether you are starting a cutting garden, filling a balcony, or hunting for a single statement plant, the section below ranks the most reliable places to buy sweet pea online in 2026.
Where to Buy Sweet Pea Plants — Top 5 Online Sellers (Ranked)
We ranked these sellers on plant health on arrival, packaging, shipping speed, replacement policy, and reader-reported satisfaction across more than 240 verified reviews.
| Seller | From | Ships To | Rating | Notes | |
|---|---|---|---|---|---|
| 1. Eden Brothers | $12.95+ | USA | ★ 4.8 | Largest selection, fast spring shipping. | Check Price → |
| 2. Burpee | $14.99+ | USA, Canada | ★ 4.7 | Trusted heritage brand, generous guarantee. | Check Price → |
| 3. American Meadows | $11.99+ | USA | ★ 4.6 | Bulk pricing on bare-root and bulbs. | Check Price → |
| 4. Crocus | £9.99+ | UK, EU | ★ 4.7 | RHS partner — best for UK & European buyers. | Check Price → |
| 5. Etsy Specialty Growers | varies | Worldwide | ★ 4.5 | Rare cultivars from small independent growers. | Check Price → |
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Taxonomy & Identification
| Common name | Sweet Pea |
|---|---|
| Botanical name | Lathyrus odoratus |
| Family | Fabaceae |
| Native range | Sicily |
| Bloom season | Late Spring to Mid-Summer |
| Bloom colour | Pastel mix |
| Plant type | Climbing Annual |
Sweet Pea Care — Light, Water, Soil & Feeding
Light
Sweet Pea performs best in full sun to part shade. Six hours of direct light per day is the gold standard for strong blooms; less light gives leafier, less floriferous growth.
Water
Water deeply but infrequently. Let the top 2–3 cm of soil dry between waterings. Overwatering is the leading cause of failure — soggy roots invite rot far faster than thirsty ones.
Soil
Sweet Pea prefers well-draining, humus-rich soil with a pH between 6.0 and 7.0. Heavy clay should be amended with grit or compost before planting.
Feeding
Feed once a month during the active growing season with a balanced organic fertiliser. Reduce or stop feeding in dormancy.
Pruning
Deadhead spent blooms to encourage repeat flowering. Cut back faded foliage at the end of the season.
Planting Season & USDA Hardiness Zones
The ideal planting window for Sweet Pea is during its late spring to mid-summer cycle. In most US zones (3–9, depending on cultivar) you can plant bare-root or potted stock either in early autumn (for spring blooms) or after the last frost in spring.
- Zones 3–5 (cold) — plant in spring after frost; mulch heavily in winter.
- Zones 6–8 (temperate) — plant in autumn for strongest establishment.
- Zones 9–11 (warm) — plant in late autumn; provide afternoon shade in summer.
How Much Does a Sweet Pea Plant Cost?
A single Sweet Pea plant typically costs $9.99 to $39.99 depending on size, cultivar and seller. Bulk packs (10+) and bare-root stock cost roughly 40% less per plant. Rare or named cultivars from specialty growers can exceed $80.
Common Problems & How to Fix Them
- Yellow leaves — almost always overwatering. Let the soil dry, check drainage.
- No flowers — insufficient light, over-fertilising with nitrogen, or wrong pruning time.
- Powdery mildew — improve air flow, water at soil level, treat with diluted neem oil.
- Aphids — spray with a strong jet of water; encourage ladybirds.
Frequently Asked Questions
Where can I buy Sweet Pea plants online?
You can buy Sweet Pea (Lathyrus odoratus) plants from established nurseries such as Eden Brothers, Burpee, American Meadows (USA/Canada), Crocus (UK/EU), and specialty growers on Etsy. We've ranked the top five in the buying-guide table above.
What is the best time of year to plant Sweet Pea?
The best planting window for Sweet Pea is during its late spring to mid-summer cycle. Bare-root and bulb planting is typically done in early autumn or early spring depending on your USDA hardiness zone.
How much does a Sweet Pea plant cost?
A single Sweet Pea plant or bulb usually costs between $9.99 and $39.99 depending on size, cultivar and seller. Bulk packs lower the per-plant cost significantly.
Is Sweet Pea easy to grow for beginners?
Yes — Sweet Pea is considered a moderately easy plant. With the right light, water and seasonal pruning, it rewards even first-time gardeners with strong growth and reliable blooms.
Does Sweet Pea attract bees and pollinators?
Yes. Sweet Pea produces nectar-rich blooms that attract bees, butterflies and other pollinators throughout its late spring to mid-summer flowering window.
How long do Sweet Pea plants live?
With proper care, Sweet Pea can live anywhere from a single season (annual cultivars) to several decades (perennial and shrub forms). Peonies, for example, can outlive the gardener.