Sweet Pea 'Parfume Promise' Seeds
Spectacular 'raspberry ripple' blooms with vibrant rosy-pink standards and pure white wings. This award-winning Spencer variety combines a vigorous climbing habit with a powerful traditional fragrance, guaranteeing a mountain of large, frilly bicolour flowers for your home and garden.
Sweet Pea 'Parfume Promise' is a spectacular bicolour variety that looks almost good enough to eat. It produces large, frilly blooms with vibrant rosy-pink upper petals (standards) that contrast beautifully with pure white lower wings—a combination often compared to raspberry ripple ice cream. As a member of the 'Spencer' family, it is bred for excellence, offering the long, straight stems and waved petals that are the hallmark of high-end floral displays.
While some bicolour varieties lose their scent, 'Promise' lives up to its name with a lovely, traditional sweet fragrance that is powerful enough to perfume a room. It is a vigorous climber, reaching up to 2.4m, and is a proud recipient of the RHS Award of Garden Merit (AGM). This confirms it as a reliable, high-performance choice for the UK garden, guaranteed to provide a mountain of fragrant blooms from June right through to the first frosts.
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🌿 Understanding the Plant
Lathyrus odoratus 'Parfume Promise' is a Hardy Annual (H3). It features the classic Spencer form, which is the gold standard for cut flowers due to its large size and ruffled texture.
The "Ripple" Aesthetic: This variety is a visual showstopper. The bicolour contrast between the rosy-pink and white petals is particularly sharp and does not "bleed," making it a favourite for wedding arrangements and summer garden parties.
Climbing Prowess: 'Promise' is a vigorous climber that will quickly clothe a trellis or obelisk. Its sturdy habit and heavy flower production ensure that your garden will have height and movement all summer long.
🌱 Growing Guide
Sweet Peas are high-energy plants that require a rich diet and consistent care to perform their best.
How to Sow:
Autumn Sowing: Sow in October or November in deep pots or root trainers. Overwintering in a cold frame allows for a massive root system and flowers as early as May. Spring Sowing: Sow from January to March. Sow seeds 1cm deep in moist compost; keep cool (around 15°C) to prevent germination failure from heat.
Where to Plant:
Plant out in late March or April. They require full sun and deep, moisture-retentive soil. For the best results, dig a trench and fill it with well-rotted manure or compost before planting. Ensure you provide strong supports like a bamboo wigwam or trellis immediately.
Ongoing Care:
Pinch Out: When the plant reaches 10cm, pinch off the top growing tip to encourage bushy side-growth. The Golden Rule: Pick the flowers every 2 days! Never allow seed pods to form; if the plant begins to set seed, it will stop producing flowers for the season.
📋 Plant Specifications
| Botanical Name | Lathyrus odoratus 'Parfume Promise' |
| Common Name | Bicolour Sweet Pea |
| Plant Type | Hardy Annual Climber |
| Hardiness | H3 (Hardy Annual) |
| Light Requirements | Full Sun ☀️ |
| Height | 1.8m - 2.4m (Climber) |
| Spread | 30cm |
| Spacing | Plant 20cm - 30cm apart |
| Flowering Period | June to September |
| Perfect For | 👰 Wedding Bouquets 👃 Scenting the Home 🏗️ Garden Arches ✂️ Professional Cut Flowers |
| Seeds per Packet | Approximately 25 seeds |
🤝 Beautiful Garden Combinations
The pink and white "ripple" of 'Parfume Promise' creates a romantic, airy look when paired with other classics from our website :
- 🌿 Ammi Majus (Bishop's Flower): The Florist's Favourite. The delicate, frothy white lace of Ammi provides the perfect textural contrast to the solid, ruffled Sweet Pea blooms, creating a meadow-style bouquet in your garden.
- ❄️ Forget-me-not 'Victoria Mixed': The Pastel Carpet. Planting a carpet of pink and white Forget-me-nots at the base of your Sweet Pea wigwam creates a beautiful "layered" effect where colour flows from the ground up the vines.
📅 Sowing & Flowering Calendar
Sow in autumn for early flowers, or spring for summer-long blooms.
⚠️ Safety First
Sweet Pea seeds look very similar to edible garden peas, but they are mildly toxic if eaten. Please keep them away from children and pets, and always store them in their original packaging.
🏆 RHS Award of Garden Merit
Sweet Pea 'Parfume Promise' is a proud recipient of the prestigious RHS Award of Garden Merit (AGM). This confirms its status as a reliable, high-performance plant perfectly suited to the British climate, providing exceptional fragrance and vigorous climbing growth.
📖 Want more detailed growing advice?
View our Complete Growing Guide for Sweet Peas →
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£2.55 - Regular price
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£2.55
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