Getting your broccoli planting time right in Virginia is the key to a big, healthy harvest. If you plant too early or too late, you might end up with small heads or plants that bolt. This guide will walk you through the optimal planting times for broccoli in Virginia, tailored to our unique climate.
Virginia’s long growing season and varied zones, from 5a to 8a, mean you can often grow two crops in a year. Timing is everything for this cool-season favorite. Let’s break it down so you know exactly when to get those plants in the ground.
When to Plant Broccoli in Virginia – Optimal Planting Times for
The best times to plant broccoli in Virginia are in the spring and the fall. For a spring crop, you’ll want to get transplants in the ground 2-4 weeks before your last average spring frost date. For a fall crop, timing is based on your first fall frost date.
Here’s a quick reference for the major regions:
- Central Virginia (Zones 7a-7b): Spring planting: Late March to mid-April. Fall planting: Late July to mid-August.
- Northern Virginia (Zones 6b-7a): Spring planting: Early to mid-April. Fall planting: Late July to early August.
- Shenandoah Valley & Western (Zones 6a-6b): Spring planting: Mid to late April. Fall planting: Mid-July to early August.
- Coastal & Tidewater (Zones 7b-8a): Spring planting: Mid-March to early April. Fall planting: Early August to early September.
Understanding Your Frost Dates
Your local frost dates are your most important calendar. Broccoli thrives in cool weather and can tolerate a light frost, which actually improves its flavor. You need to know two dates:
- Your average last spring frost date.
- Your average first fall frost date.
You can find these dates from your local extension office or a reliable gardening website. Once you have them, the calculations are simple.
Spring Planting Schedule
The goal for spring is to get broccoli to mature before the heat of summer arrives. Hot weather causes broccoli to bolt, meaning it flowers and becomes bitter.
Starting Seeds Indoors
For a spring crop, you should start broccoli seeds indoors. This gives you a head start on the season.
- Start seeds 6-8 weeks before your last spring frost date.
- Use a seed-starting mix and keep them under grow lights or in a very sunny window.
- Transplant seedlings outdoors when they have 4-6 true leaves.
Direct Sowing in Spring
You can also sow seeds directly in the garden, but it’s less common for spring. If you do, sow seeds 2-3 weeks before the last frost. The soil needs to be workable and not to wet. Covering the rows with a frost cloth can protect young seedlings from a surprise cold snap.
Fall Planting Schedule
Many Virginia gardeners find fall broccoli is easier and more productive. The cooling temperatures are ideal for head development. Pests are also less of a problem in the fall.
To calculate your fall planting date, count backwards from your first fall frost date:
- Find the “days to maturity” on your seed packet (usually 50-80 days).
- Add about 10 days for the slowing growth as days shorten.
- Count back that total number of days from your first fall frost date. That’s your target seeding date.
Starting Fall Broccoli
For fall broccoli, you can start seeds indoors in mid-summer to protect them from extreme heat. Transplant them into the garden in late summer. Alternatively, you can sow seeds directly in the garden in late summer. Just make sure to keep the seedbed consistently moist during germination.
Choosing the Right Broccoli Varieties for Virginia
Selecting varieties suited to our climate can make a big difference. Look for types with good heat tolerance for spring and cold tolerance for fall.
- For Spring: Consider quick-maturing varieties like ‘Green Magic’ or ‘Gypsy’ which produce heads before the heat peaks.
- For Fall: You can use a wider range. ‘Belstar’, ‘Arcadia’, and ‘Waltham 29’ are excellent, reliable choices that handle frost well.
- Heirloom Option: ‘Calabrese’ is a classic Italian heirloom that performs wonderfully in Virginia’s fall gardens.
Step-by-Step Planting Guide
Once your timing is right, follow these steps for success.
- Prepare the Soil: Broccoli needs fertile, well-draining soil with a pH between 6.0 and 7.0. Work in 2-3 inches of compost or well-rotted manure before planting.
- Spacing: Space transplants 18-24 inches apart in rows that are 2-3 feet apart. This gives the plants room to grow large leaves, which support big heads.
- Planting Depth: Set transplants slightly deeper than they were in their pots, up to the first set of true leaves. This encourages a strong stem.
- Watering: Water deeply immediately after planting. Provide 1-1.5 inches of water per week, keeping the soil consistently moist but not soggy.
- Mulching: Apply a 2-3 inch layer of straw or shredded leaves around plants. This conserves moisture, suppresses weeds, and keeps soil cool.
Common Problems and Solutions
Even with perfect timing, you might face a few challenges. Here’s how to handle them.
Pests
Cabbage worms, loopers, and aphids love broccoli. Check the undersides of leaves regularly.
- Use floating row covers right after planting to exclude moths and butterflies.
- For worms, handpick them or use an organic spray containing Bt (Bacillus thuringiensis).
- A strong spray of water can dislodge aphids.
Bolting
If your broccoli sends up a flower stalk prematurely, it’s usually due to stress. The most common causes are planting too late in spring (exposing the plant to heat) or a sudden spike in temperature. Sticking to the optimal planting window is your best defense.
Poor Head Formation
Small or loose heads can result from several factors:
- Nutrient Deficiency: Broccoli is a heavy feeder. Side-dress with a balanced, nitrogen-rich fertilizer when plants are about 6 inches tall and again when heads begin to form.
- Overcrowding: If plants are to close together, they compete for resources and won’t form proper heads.
- Stress: Inconsistent watering or extreme temperatures can disrupt development.
Harvesting Your Broccoli
Harvest is the rewarding part! For the main head, cut the central stem about 5-6 inches below the head when the buds are tight and dark green, before any yellow flowers start to open. Use a sharp knife.
After you harvest the main head, don’t pull the plant. Most varieties will produce smaller side shoots for several weeks. Keep watering and you’ll get a continuous secondary harvest, especially from fall plants.
FAQ: Virginia Broccoli Planting
Can I plant broccoli in the summer in Virginia?
It’s not recommended. Summer heat causes broccoli to bolt quickly and leads to poor head quality. Stick to spring and fall planting windows.
What if I missed the spring planting date?
It’s better to wait and plant for a fall crop. Starting broccoli in late spring or early summer will almost certainly result in bolting.
Should I use transplants or seeds?
For spring, transplants are best to get a jump on the season. For fall, you can use either. Starting seeds indoors in summer avoids garden pests during the vulnerable seedling stage.
How do I protect broccoli from a hard freeze in the fall?
Broccoli can handle light frosts, but a hard freeze (below 28°F) can damage heads. If a deep freeze is forecast, cover your plants with a frost blanket or even an old bedsheet. Harvest any nearly-ready heads just before the freeze.
Can I grow broccoli in containers?
Yes. Choose a large pot (at least 5 gallons) and a compact variety. Ensure the container has excellent drainage and water more frequently, as pots dry out faster.
By following these timing guidelines and care tips, you can enjoy a bountiful broccoli harvest in your Virginia garden. The effort you put into planting at the right time pays off with crisp, flavorful heads that are far superior to store-bought.