Sweet peas are prized for their stunning colours, delightful scent, and ability to thrive in a range of conditions. Ideal for trellises, fences, or pots, they bring vertical interest and fragrance to any garden or outdoor space.
Position
Sweet peas thrive in a sunny spot with well-drained soil. They are climbers, so they will need support from a trellis, fence, or wall. Smaller varieties can also grow well in containers or pots, making them versatile for different garden sizes.
Prepare Soil
Garden: Sweet peas prefer slightly alkaline soil, so it’s important to add some garden lime if your soil is acidic. Ensure the soil is well-drained and moderately fertile.
Pots: Use a quality seed-raising mix for starting sweet peas in pots. Ensure the container has drainage holes to prevent waterlogging.
Feed
Garden: Sweet peas are not heavy feeders, but applying a light dressing of compost or organic matter will help promote strong growth. Avoid high-nitrogen fertilisers as they can lead to excessive leaf growth rather than flowers.
Pots: Use a balanced liquid fertiliser every 4-6 weeks to encourage healthy blooms.
Watering & Mulching
Sweet peas need regular watering, especially during dry spells. Keep the soil consistently moist but not waterlogged. Mulching can help retain moisture and suppress weeds, but be careful not to bury the base of the plant.
Protection
Sweet peas are relatively hardy but can be susceptible to mildew, especially in humid conditions. To prevent mildew, provide good air circulation and avoid overhead watering. Pinching back the growth encourages branching, which leads to more flowers.
Harvest
Pick sweet peas regularly to encourage more blooms. Harvest the flowers when they are fully open, cutting them early in the morning for the best fragrance and longevity.
Garden Expert Tip
Sweet peas are not only beautiful in the garden, but they’re also a fantastic addition to cut flower arrangements. For longer-lasting blooms, harvest them just as the first flower opens and place the stems in water immediately. This will help keep them fresh for days.
