Sowing Instructions for Growing Welldales Italian Giant Sweet Basil from Seeds
Welldales Italian Giant Sweet Basil is a must-have for UK gardeners looking to grow a robust, aromatic herb that thrives in the country’s varied climate. Known for its large, ruffled leaves and strong, sweet aroma, this basil variety is a favourite for its versatility and easy-growing nature. Whether you’re growing indoors on a sunny windowsill or outdoors in garden beds, Italian Giant Sweet Basil is quick to germinate and can adapt well to different conditions. Its fast-growing nature ensures a continuous supply of lush leaves throughout the summer, making it perfect for those who enjoy fresh herbs. Though originally from the Mediterranean, this basil variety can be successfully grown in the UK with proper care, particularly in full sun or with the help of a propagator during cooler months. With a long history in culinary traditions, Italian Giant Sweet Basil not only adds flavour to dishes but also beauty to your garden, with its lush foliage reaching up to 60cm tall.
Where to Sow Giant Basil Seeds
- Indoors: For an early start, sow seeds indoors from February to April. This allows you to get a head start on the growing season, especially if you want to transplant the seedlings outdoors when it gets warmer.
- Outdoors: Sow basil seeds outdoors from May to July, once all danger of frost has passed and the soil has warmed up. Basil prefers temperatures above 18°C for optimal growth.
Growing Italian Giant Sweet Basil in a Propagator
- Optimal Conditions: Set your propagator to 18-22°C for quicker germination. Use a fine seed compost and keep it moist but not saturated.
- Light Requirements: Once seedlings emerge, ensure they receive ample light, either from natural sunlight or by using grow lights. Basil requires around 12-14 hours of light per day for optimal growth.
- Transplanting: Once the seedlings have grown their second set of true leaves, transplant them into larger containers or directly into the garden when it is warm enough.
Growing & Caring for Indoor Basil Plants
- Sowing Depth: Sow seeds at a depth of 1/16 to 1/8 inch (about 2-3mm) on the surface of a light, well-draining seed compost. Cover lightly with soil or vermiculite.
- Using a Propagator: If using a propagator, set the temperature to 18-22°C to encourage faster germination.
- Germination Time: Seeds will typically germinate within 7-21 days, depending on warmth and light conditions.
- Transplanting Indoors: Once seedlings are 2-3 inches tall, transplant them into individual pots, spacing them 8-10 inches apart to allow room for growth. Keep the plants on a sunny windowsill or in a greenhouse for best results.
How to Grow Italian Giant Basil Plants Outdoors
- Sowing Depth: Direct sow the seeds outdoors in well-drained soil at a depth of 1/16 to 1/8 inch.
- Sunlight Requirements: Choose a sunny spot in your garden with at least 6-8 hours of sunlight daily. Basil thrives in full sun, but partial shade will suffice in warmer parts of the UK.
- Spacing: Thin seedlings to about 8-10 inches apart once they have grown to around 2 inches tall. This ensures adequate air circulation and healthy plant growth.
- Watering: Water the basil consistently, but avoid waterlogging the soil. Basil prefers to stay moderately moist, but well-drained soil is key to preventing root rot.
How to Harvest & Care for Basil Plants in the UK
- Harvesting: Begin harvesting leaves when the plants are 6-8 inches tall. Regularly pinch or cut leaves to promote bushier growth. For the best flavour, harvest in the morning.
- Fertilising: Use a balanced, organic fertiliser once a month during the growing season to encourage healthier and more vigorous growth.
- Deadheading: Remove flower buds as soon as they appear to extend the leaf production period. This variety of basil will produce larger and more flavourful leaves when it is not allowed to flower.
- Companion Planting: Italian Giant Basil grows well alongside tomatoes, peppers, and root vegetables, enhancing their growth while repelling garden pests like aphids.
Frequently Asked Questions About Growing Italian Giant Sweet Basil in the UK
1. Does Italian Giant Basil Grow Back Every Year?
No, Italian Giant Sweet Basil is an annual herb in the UK. It completes its life cycle in one growing season but can be re-sown each year for continuous basil harvests.
2. How Long Does It Take for Basil Seeds to Germinate?
Basil seeds typically germinate within 7-21 days, depending on temperature and growing conditions. Warmer temperatures (18-22°C) will encourage faster germination.
3. Can I Grow Basil Indoors Year-Round?
Yes, basil can be grown indoors year-round, provided it receives enough light (at least 6-8 hours daily) and warmth. Use a propagator or grow lights to maintain the right conditions during the cooler months.
4. How Much Sun Does Italian Giant Basil Need?
Italian Giant Basil thrives in full sun, requiring at least 6-8 hours of sunlight daily. In warmer areas, partial shade can help prevent the leaves from wilting in the heat of the day.
5. How Should I Space My Basil Plants?
Space basil plants 8-10 inches apart to ensure they have enough room to grow. Proper spacing also helps with air circulation, reducing the risk of disease.
6. Do I Need to Fertilise My Basil Plants?
Yes, basil benefits from a monthly application of a balanced fertiliser during the growing season. This helps support healthy growth and maximises leaf production.
