Growing perilla, also known as shiso or beefsteak plant, is an exciting venture for both novice and experienced gardeners alike. This aromatic herb, which hails from East Asia, is prized for its distinctive flavor and versatility in culinary applications. In New Hampshire, the climate can present unique challenges and opportunities for growing perilla. In this guide, we will explore the best practices for cultivating perilla seeds in New Hampshire, covering everything from soil preparation to pest management.
Before diving into the specifics of growing perilla seeds, it’s essential to understand the plant itself. Perilla (Perilla frutescens) is an annual herb that belongs to the mint family. It comes in various varieties, with green-leafed and purple-leafed types being the most common. The leaves have a distinct, fragrant aroma that can be described as a mix between mint and basil. Known for its culinary uses in salads, soups, and as a wrap for grilled meats, perilla is not only delicious but also highly nutritious, packed with vitamins and antioxidants.
In New Hampshire, you’ll want to select a variety of perilla that can thrive in your local climate. The most commonly grown varieties include:
Both varieties can be successfully grown in New Hampshire with the right care and attention.
Perilla thrives in warm weather; therefore, the best time to plant seeds in New Hampshire is after the last frost date, typically between late May and early June. This ensures that young plants are not exposed to colder temperatures that could stunt their growth.
Well-drained soil rich in organic matter is crucial for growing healthy perilla plants. Here are some tips for preparing your soil:
Soil Type: Aim for loamy or sandy soil with good drainage. Heavy clay soils should be amended with compost or peat moss to improve texture.
pH Level: Perilla prefers slightly acidic to neutral soil (pH 5.5 to 7.0). Conduct a soil test before planting to determine if you need to amend your soil’s pH.
Organic Matter: Incorporate compost or well-rotted manure into your garden bed to enhance nutrient content.
Perilla loves sunlight; thus, choosing a location that receives at least 6-8 hours of full sun each day is essential for optimal growth. In particularly hot regions of New Hampshire, providing some afternoon shade can help prevent leaf scorch.
For a head start on the growing season, consider starting your perilla seeds indoors:
Timing: Start seeds indoors about 6-8 weeks before the last expected frost date.
Containers: Use seed trays or small pots filled with seed-starting mix.
Sowing Depth: Sow seeds about ¼ inch deep and keep them moist but not soggy.
Temperature: Maintain a temperature of around 70°F to encourage germination.
Transplanting: Once seedlings develop two sets of true leaves and outdoor conditions are favorable (typically after mid-May), harden off the seedlings by gradually exposing them to outdoor conditions before transplanting them into your garden.
If you prefer direct sowing:
Timing: Wait until all danger of frost has passed (late May).
Sowing Depth: Plant seeds about ¼ inch deep in well-prepared garden beds.
Spacing: Space seeds about 12-18 inches apart to allow ample room for growth.
Watering: Keep the soil consistently moist until seeds germinate, which typically takes about 7-14 days under ideal conditions.
Perilla prefers consistently moist soil but does not tolerate soggy conditions very well. Water your plants regularly during dry spells but ensure proper drainage to prevent root rot.
Incorporate a balanced fertilizer at planting time, ideally one that releases nutrients slowly over time (like a 10-10-10 NPK fertilizer). You can follow up with additional feedings every four weeks using diluted liquid fertilizer during the growing season.
As your plants grow, pinching back tips can encourage bushier growth and prevent flowering too early (which can lead to reduced leaf quality). Harvest leaves once plants reach about 6 inches tall by cutting individual leaves or branches as needed.
While perilla is relatively pest-resistant, you should still keep an eye out for common garden pests such as aphids, spider mites, and whiteflies:
Monitoring: Regularly inspect your plants for signs of pests or disease.
Natural Predators: Encourage beneficial insects like ladybugs and lacewings in your garden to keep pest populations under control.
Organic Control: In case of infestation, consider using insecticidal soap or neem oil as organic pest control methods.
In New Hampshire’s cold winters, perilla does not survive frost; however, if you wish to continue growing it year after year:
Seed Saving: Allow some plants to go to seed at the end of the season; collect these seeds for planting next year.
Indoor Growing: If you want to attempt overwintering perilla indoors, transplant selected plants into pots and place them near a sunny window where they can receive adequate light during winter months.
Growing perilla seeds in New Hampshire offers gardeners an opportunity to cultivate an exotic herb that enhances culinary experiences while also contributing beauty to their gardens. By following proper planting techniques, providing suitable conditions, and managing pests effectively, anyone can successfully grow this unique plant even in northern climates like New Hampshire. With patience and care, you’ll find yourself rewarded with lush foliage and flavorful leaves ready for use in your favorite dishes!