Royal Maroon Sweet Pea Seeds – Rich Maroon Annual Flowers

Rich Maroon Color for Your Cool-Season Garden

Royal Maroon sweet peas (Lathyrus odoratus) bring deep maroon flowers to a seasonal garden display. Their rich color adds contrast alongside softer flower shades and brings a classic cottage-garden feel to your planting.

Picture gathering a few fresh stems on a cool morning to enjoy indoors. Grow these annual flowers during cooler weather and provide support for climbing stems as they develop.

Plant Highlights

• Variety: Royal Maroon
• Botanical name: Lathyrus odoratus
• Life cycle: Annual
• Flower color: Maroon
• Growing season: Best suited to cool conditions
• Uses: Supported garden plantings, cottage gardens, and cut flowers

When to Sow

In mild-winter climates, sow in fall for growth through the cooler season. In colder regions, sow in early spring as soon as the soil can be worked, or start indoors in deep individual pots for careful transplanting. Protect young plants during severe freezes. Cool-weather tolerance does not mean plants can withstand every winter temperature.

Sowing Guide

• Soak seeds in room-temperature water overnight before sowing to help soften the seed coat.
• Sow approximately 1/2 to 1 inch deep in well-drained soil.
• Keep the seedbed evenly moist, not waterlogged.
• Choose a sunny site; light afternoon shade may help where spring weather turns hot.
• Install netting, a trellis, or another suitable support early, and guide developing stems onto it.

Germination and flowering times vary with soil temperature, weather, and planting date. When transplanting, handle roots gently and avoid disturbing the root ball.

Growing Care

Water regularly during dry spells and mulch around plants to help keep roots cool, leaving space around the stems. Allow airflow between plants. Remove faded flowers and developing pods to encourage continued flowering. Prolonged heat can shorten the flowering season.

Cut-Flower Tips

Gather stems when several flowers on each stem have opened. Place them promptly in clean water and remove foliage below the waterline. Regular picking helps keep the planting focused on flowers rather than seed production.

Important: Ornamental Only

Sweet peas are not edible garden peas. Seeds and pods are toxic if eaten. Do not consume any part of the plant. Keep seeds and plants away from children and pets.