perennial

Erewhon Sweet Pea

Lathyrus x belinensis 'Erewhon'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

72 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Medium

Humidity

Average

Lifespan

Annual

Native To

Garden Origin

Toxicity

Seeds are toxic if ingested.

The Story

Plant Bio

A vigorous, climbing annual sweet pea, prized for its strong fragrance. It requires a trellis or other support to climb. Distinctive for its unique 'reverse' bicolored flowers, with mauve-blue upper petals (standards) and deep rose-pink lower petals (wings). More heat tolerant than many other sweet pea varieties.

Uses & Benefits:

Delightful fragrant flowers and attractive climbing habit make it perfect for decorative gardens and vertical spaces.

Provides natural privacy screens and supports eco-friendly pest control by attracting beneficial insects.

Supports pollinators like bees and hummingbirds, enhancing garden biodiversity.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Tuck seeds into well-drained soil in early spring for best germination.
Mist cuttings regularly to maintain humidity and encourage root growth.
Provide a trellis or support for climbing varieties to grow vertically.
Water consistently but avoid waterlogging, especially during dry spells.
Apply balanced fertilizer monthly during the growing season for vigorous growth.
Prune after flowering to promote bushier growth and prevent legginess.

Pro Tip

Soak seeds overnight before planting to improve germination rates.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist but not soggy 🌱
Support vines with trellises or stakes for optimal growth
Fertilize monthly during active growth periods

Don't

Avoid overwatering which can cause root rot ❌
Do not disturb roots during flowering
Avoid planting in heavy clay soil without amendments

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Harvest
Pinch
Plant
Stake

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Climbing vine on trellises for vertical interestWildflower meadow for naturalistic appealFragrant border for sensory enhancement

Companion Plants

Lavender Sweet peas Marigolds Nasturtiums Cosmos

Multiply

Propagation Methods

Good to Know

Common Questions

Erewhon Sweet Pea questions

What zones can Erewhon Sweet Pea grow in?

Erewhon Sweet Pea is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Erewhon Sweet Pea deer resistant?

Yes — Erewhon Sweet Pea is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Erewhon Sweet Pea bloom?

Erewhon Sweet Pea typically blooms in late spring, summer through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Erewhon Sweet Pea need full sun?

Erewhon Sweet Pea does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.