Tennessee’s moderate climate allows for a spring planting of parsley once the soil warms, but knowing the exact Best Time To Plant Parsley In Tennessee can make the difference between a lush harvest and a disappointing crop. This guide breaks down everything you need to know for successful parsley growing in the Volunteer State.
Parsley is a biennial herb that thrives in cool weather. In Tennessee, you have two main planting windows: early spring and late summer for a fall harvest. The key is to avoid the intense summer heat, which can cause the plant to bolt and turn bitter.
Best Time To Plant Parsley In Tennessee
The ideal window for planting parsley in Tennessee is from mid-March to early April for spring planting, and from late July to mid-August for a fall crop. This timing ensures the soil is workable and temperatures are moderate.
For spring planting, wait until the soil temperature reaches at least 50°F (10°C). You can check this with a simple soil thermometer. In most of Tennessee, this happens around the same time as the last frost date, which varies by region.
Spring Planting Window By Tennessee Region
Tennessee spans USDA hardiness zones 6a to 8a. Here is a breakdown of spring planting times:
- East Tennessee (Zones 6a-7a): Plant from late March to mid-April. The higher elevation means cooler soil, so wait a bit longer.
- Middle Tennessee (Zones 6b-7b): Plant from mid-March to early April. This is the sweet spot for most gardeners.
- West Tennessee (Zones 7b-8a): Plant from early March to late March. Warmer winters allow for an earlier start.
Fall planting is often easier because the soil is already warm, and the cooler autumn temperatures are perfect for parsley. Sow seeds directly in the garden from late July to mid-August. You will get a harvest that lasts until the first hard frost.
Why Timing Matters For Parsley
Parsley seeds are slow to germinate, taking 2 to 4 weeks. If you plant too early in cold, wet soil, the seeds may rot. If you plant too late in spring, the heat will stress the plants, causing them to flower and go to seed quickly.
In Tennessee’s humid summers, parsley also struggles with fungal diseases. Planting at the right time helps the plants establish before the worst heat arrives.
How To Prepare Your Soil For Parsley
Parsley grows best in rich, well-draining soil with a pH between 6.0 and 7.0. Before planting, test your soil or simply amend it with compost.
Steps To Prepare The Garden Bed
- Choose a location: Pick a spot that gets full sun to partial shade. In Tennessee, afternoon shade can help during hot spells.
- Loosen the soil: Dig down about 8 to 10 inches. Remove rocks and debris.
- Add organic matter: Mix in 2 to 3 inches of well-rotted compost or aged manure. This improves drainage and fertility.
- Level the bed: Rake the surface smooth so water doesn’t pool.
If you have heavy clay soil (common in parts of Middle Tennessee), consider building a raised bed. Parsley hates wet feet.
Starting Parsley From Seed Vs Transplants
You have two options: direct sowing seeds or buying transplants from a nursery. Each has pros and cons.
Direct Sowing Seeds
Sowing seeds directly in the garden is cheaper and gives you more variety. However, parsley seeds have a reputation for being finicky.
- Soak seeds overnight: This softens the seed coat and speeds up germination.
- Plant 1/4 inch deep: Cover lightly with soil. Space seeds 6 to 8 inches apart.
- Keep soil moist: Use a fine mist to avoid washing seeds away. Cover with a light layer of mulch or a row cover to retain moisture.
- Be patient: Germination can take 3 to 4 weeks. Don’t give up if you don’t see sprouts right away.
Using Transplants
Transplants give you a head start. You can buy them at garden centers in spring or start your own indoors 6 to 8 weeks before the last frost.
- Harden off transplants: Gradually expose them to outdoor conditions over a week.
- Plant at the same depth: Set them in the ground at the same level they were in the pot.
- Space 8 to 10 inches apart: Parsley grows into a bushy plant, so give it room.
- Water well: After transplanting, water deeply to settle the soil.
Transplants are more expensive but reduce the risk of germination failure. For fall planting, direct sowing is usually easier because the soil is warm.
Caring For Parsley Through The Seasons
Once your parsley is in the ground, consistent care is key. Tennessee’s weather can be unpredictable, so stay on top of watering and pests.
Watering Needs
Parsley needs about 1 to 2 inches of water per week. In Tennessee’s hot summers, you may need to water more frequently.
- Water at the base: Avoid wetting the leaves to prevent fungal diseases.
- Use mulch: A 2-inch layer of straw or shredded leaves keeps soil cool and moist.
- Check soil moisture: Stick your finger an inch into the soil. If it feels dry, it’s time to water.
Fertilizing
Parsley is a heavy feeder. Apply a balanced fertilizer (10-10-10) once a month during the growing season. Or side-dress with compost halfway through.
If you notice yellowing leaves, it may need nitrogen. Fish emulsion is a good organic option.
Pest And Disease Management
In Tennessee, common pests include aphids, parsley worms (which turn into swallowtail butterflies), and slugs.
- Aphids: Spray with a strong jet of water or use insecticidal soap.
- Parsley worms: Hand-pick them or leave them if you want butterflies. They rarely do major damage.
- Slugs: Use beer traps or diatomaceous earth around the plants.
Fungal diseases like powdery mildew can appear in humid weather. Ensure good air circulation by spacing plants properly and watering in the morning.
Harvesting Parsley At The Right Time
You can start harvesting parsley once the stems have three segments. This usually takes 70 to 90 days from seed, or about 3 weeks after planting transplants.
How To Harvest
- Cut outer stems first: Snip them at the base, leaving the inner stems to grow.
- Never take more than one-third of the plant: This ensures continued growth.
- Harvest in the morning: This is when the leaves are most flavorful.
If you let parsley flower, the leaves become bitter. Pinch off flower buds as soon as they appear to keep the plant producing.
Overwintering Parsley In Tennessee
Parsley is biennial, meaning it lives for two years. In Tennessee, it can survive mild winters with some protection.
Winter Care Tips
- Mulch heavily: Apply a 4- to 6-inch layer of straw or leaves after the first hard frost.
- Use a cold frame: This extends the harvest into December or even January.
- Bring pots indoors: If you grow parsley in containers, move them to a sunny window for winter harvests.
In colder parts of East Tennessee, parsley may not survive the winter. Plan to replant in spring.
Common Mistakes To Avoid
Even experienced gardeners make errors with parsley. Here are the most common ones in Tennessee:
- Planting too deep: Parsley seeds need light to germinate. Plant no deeper than 1/4 inch.
- Overwatering: Soggy soil leads to root rot. Let the top inch dry out between waterings.
- Ignoring soil pH: Parsley prefers slightly acidic to neutral soil. Test and amend if needed.
- Planting in full shade: Parsley needs at least 4 to 6 hours of sun daily.
- Not thinning seedlings: Crowded plants compete for nutrients and are more prone to disease.
Companion Planting With Parsley
Parsley is a great companion for many garden plants. It attracts beneficial insects like hoverflies and parasitic wasps.
Good Companions
- Tomatoes: Parsley repels asparagus beetles and attracts pollinators.
- Asparagus: They grow well together and parsley can help deter pests.
- Roses: Parsley is said to improve the scent and health of roses.
- Corn: Parsley attracts beneficial insects that prey on corn pests.
Bad Companions
- Lettuce: They compete for similar nutrients and space.
- Alliums (onions, garlic): They can stunt parsley’s growth.
- Carrots: They are in the same family and can share pests.
Growing Parsley In Containers
If you have limited space or poor soil, containers are a great option. Parsley does well in pots.
Container Tips
- Choose a pot at least 8 inches deep: Parsley has a taproot that needs room.
- Ensure drainage holes: Add a layer of gravel at the bottom.
- Use quality potting mix: Garden soil is too heavy for containers.
- Water more often: Pots dry out faster than garden beds.
In Tennessee, you can move containers to a shaded porch during the hottest part of summer to prevent bolting.
Preserving Your Parsley Harvest
Parsley is best fresh, but you can preserve it for later use. Here are three methods:
- Freezing: Chop parsley and freeze it in ice cube trays with water or olive oil. Pop out cubes as needed.
- Drying: Hang bundles upside down in a dark, airy space. Crumble the leaves and store in an airtight jar.
- Refrigerating: Place stems in a glass of water and cover loosely with a plastic bag. Change water every few days.
Dried parsley loses some flavor, so freezing is often preferred for cooking.
Frequently Asked Questions
Can I plant parsley in the fall in Tennessee?
Yes, fall planting is ideal. Sow seeds from late July to mid-August for a harvest that lasts until frost. The cooler weather improves flavor.
How long does it take for parsley to grow from seed?
Parsley seeds take 2 to 4 weeks to germinate. Once sprouted, you can start harvesting in about 70 to 90 days.
Does parsley need full sun in Tennessee?
Parsley grows best in full sun to partial shade. In Tennessee’s hot summers, some afternoon shade can prevent bolting and leaf scorch.
What is the best variety of parsley for Tennessee?
Flat-leaf (Italian) parsley is more heat-tolerant than curly parsley. Varieties like ‘Giant of Italy’ and ‘Dark Green Italian’ perform well.
Can I grow parsley indoors year-round?
Yes, parsley grows well indoors on a sunny windowsill. Use a deep pot and provide at least 6 hours of light. Expect slower growth in winter.
Final Thoughts On Planting Parsley In Tennessee
Timing is everything when growing parsley in Tennessee. Stick to the spring and fall windows, prepare your soil well, and provide consistent care. You will be rewarded with fresh herbs for months.
Remember to soak those seeds, water at the base, and harvest regularly. Parsley is forgiving once established, so don’t stress if you make a mistake. Just adjust and try again next season.
With the right approach, you can enjoy homegrown parsley from early spring through late fall. And if you protect it through winter, it might even come back for a second year. Happy gardening in Tennessee!