Sweet Basil Herb Seeds

March is the best month to start sweet basil seeds indoors in the UK, providing an early head start with germination at 20°C in pots or trays on a warm windowsill or propagator.​​

Sowing can continue through April to July for successive crops and a longer season, avoiding cold snaps by hardening off plants before transplanting outdoors post-frost in May.

Start harvesting sweet basil leaves when plants reach 6-8 inches (15-20cm) tall, about 4-6 weeks after sowing indoors or transplanting.​ Pinch or snip the top growth tips just above a leaf node to encourage bushier growth, taking up to 1/3 of the plant every 1-2 weeks during summer.​​ We recommend you harvest in the morning for the best flavour.

Sweet basil seeds' benefits include being rich in fibre, omega-3s, antioxidants, iron, calcium, and magnesium, aiding digestion, weight management, heart health, blood sugar control, and hydration.​ They also offer anti-inflammatory effects, skin benefits, immunity support, and a cooling property ideal for summer drinks. Soak them in water for 10-15 minutes first so they swell and form a gel-like coating, making them easier to digest. Sweet basil seeds also add texture to drinks, smoothies, desserts, yoghurt, or salads.