David Domoney on Instagram: "How to grow sweet peas from seed in containers 🌱 Sweet peas germinate best in deep pots (10–12 cm), which is why toilet roll tubes and rootrainers work so well for strong, healthy plants. Sweet peas don’t mess about underground; their fast-growing taproots support vigorous climbing growth and help the plant hunt down nutrients, giving you more resilient results. Using cardboard tubes or clear root trainers allows you to sow seeds cleanly and plant them out without r