Best Time To Plant Rhubarb In Virginia

Virginia’s mild winters allow for both spring and fall rhubarb planting with proper preparation. The best time to plant rhubarb in Virginia depends on your specific region and weather patterns, but understanding the optimal window ensures a healthy harvest for years to come. Rhubarb is a hardy perennial that thrives in cooler climates, making Virginia’s varied zones a great fit with a little planning.

You might think rhubarb is tricky, but it’s actually quite forgiving once you know the timing. The key is to avoid extreme heat and give the roots time to establish before summer or winter sets in. Let’s break down the ideal planting seasons for Virginia gardeners.

For most of Virginia, the best time to plant rhubarb in Virginia is early spring, as soon as the soil is workable. This usually falls between mid-March and early April, depending on your elevation and proximity to the coast. Fall planting is also an option, typically from late September to mid-October, but it requires more careful soil preparation and mulching.

Spring planting gives rhubarb a full growing season to establish strong roots before the heat of summer. Fall planting works well if you want a head start the following spring, but you must protect the young plants from frost heaving. Either way, the goal is to plant when temperatures are cool and the soil is moist but not waterlogged.

Understanding Virginia’s Climate Zones

Virginia spans USDA hardiness zones 5b in the mountains to 8a in the coastal plains. This affects your planting calendar. In the western mountains, spring comes later, so you might plant in late April. In eastern Virginia, you can plant as early as mid-March.

Zone 5b-6a (Mountain regions): Plant in early to mid-April for spring, or late September for fall.
Zone 6b-7a (Central Virginia): Plant in late March to early April, or early October for fall.
Zone 7b-8a (Coastal plains): Plant in mid-March, or mid-October for fall.

Check your local frost dates. Rhubarb crowns can tolerate light frost, but avoid planting when the ground is frozen or waterlogged. Soil temperature should be at least 40°F for spring planting.

Spring Planting Step-By-Step

Spring is the most popular time for rhubarb in Virginia. Here is a simple guide:

Choose a sunny spot with well-drained soil. Rhubarb needs at least six hours of sun daily.
Test your soil pH. Aim for 6.0 to 6.8. Add lime if needed, as rhubarb prefers slightly acidic to neutral soil.
Prepare the bed by digging in compost or aged manure. Rhubarb is a heavy feeder.
Plant crowns 2-3 inches deep, with buds facing up. Space them 3-4 feet apart.
Water thoroughly after planting, then keep soil moist but not soggy.
Mulch with straw or wood chips to retain moisture and suppress weeds.

Do not harvest any stalks the first year. Let the plant focus on root development. You can take a few stalks in the second year, but wait until the third year for a full harvest.

Fall Planting Considerations

Fall planting can be successful if you act before the first hard frost. The soil is still warm from summer, which helps roots establish before winter dormancy. However, you must mulch heavily to protect against freezing and thawing cycles that can heave crowns out of the ground.

Plant at least six weeks before the first expected frost. In Virginia, that means late September to mid-October.
Use a thick layer of mulch, like straw or shredded leaves, 4-6 inches deep after planting.
Water regularly until the ground freezes, but do not overwater.
Remove mulch in early spring once new growth appears.

Fall-planted rhubarb may need extra care during the first winter. If you live in the mountains, spring planting is safer. In coastal areas, fall planting works well because winters are milder.

Choosing The Right Rhubarb Varieties For Virginia

Not all rhubarb varieties perform equally in Virginia’s climate. Some are more heat-tolerant, while others handle humidity better. Here are top choices:

Victoria: A classic variety that does well in most Virginia zones. It has thick, green stalks with a mild flavor.
Canada Red: Produces deep red stalks that are sweeter and less tart. It tolerates heat better than many red varieties.
Valentine: A reliable red variety that grows well in the mid-Atlantic. It has good disease resistance.
Riverside Giant: A green-stalked variety that thrives in cooler mountain regions. It produces large stalks.

Avoid varieties that are bred for extremely cold climates, as they may struggle in Virginia’s warmer summers. Stick with proven performers for your zone.

Soil Preparation And Site Selection

Rhubarb is a long-lived plant, often producing for 10-15 years or more. So site selection matters. Choose a spot where it won’t be disturbed by annual garden rotation.

Soil should be rich in organic matter. Add 2-3 inches of compost or well-rotted manure before planting. If your soil is heavy clay, consider raised beds to improve drainage. Rhubarb hates wet feet and can rot in soggy soil.

Test soil drainage: Dig a hole 12 inches deep and fill with water. If it drains within an hour, you are good.
Amend sandy soil with compost to retain moisture and nutrients.
For clay soil, add gypsum or coarse sand to improve drainage.

Mulch annually with compost to keep the soil fertile. Avoid using fresh manure, as it can burn the roots. Aged manure is fine.

Watering And Fertilizing Rhubarb

Rhubarb needs consistent moisture, especially during the first year. Water deeply once a week if rainfall is scarce. In Virginia’s humid summers, watch for fungal diseases caused by overwatering.

Fertilize in early spring with a balanced 10-10-10 fertilizer. Apply about 1/2 cup per plant, scattered around the crown but not touching it. Repeat after harvest in late spring or early summer.

Do not overfertilize with nitrogen, as this can lead to lush foliage but thin stalks. Organic options include fish emulsion or compost tea applied monthly during the growing season.

Common Pests And Diseases In Virginia

Rhubarb is relatively pest-free, but Virginia gardeners may encounter a few issues. The most common are:

Rhubarb curculio: A small beetle that bores into stalks. Remove affected stalks and destroy them.
Slugs and snails: They love young shoots. Use diatomaceous earth or beer traps around plants.
Crown rot: Caused by poor drainage or overwatering. Ensure soil drains well and avoid planting too deep.
Leaf spot: A fungal disease that appears as brown spots. Remove infected leaves and improve air circulation.

Prevention is key. Space plants properly, water at the base, and remove dead leaves in fall. Avoid overhead watering to reduce disease risk.

Harvesting Rhubarb In Virginia

Wait until the second year to harvest lightly. In the third year, you can harvest for 4-6 weeks. In Virginia, the harvest season typically runs from April through June, depending on your zone.

Harvest stalks when they are 12-18 inches long and firm. Grasp the stalk near the base and pull gently with a twisting motion. Do not cut stalks, as this can leave stubs that rot.

Never harvest more than one-third of the stalks at a time.
Stop harvesting by mid-summer to allow the plant to store energy for next year.
Remove flower stalks as soon as they appear, unless you want seeds. Flowering reduces stalk production.

Rhubarb leaves are toxic due to oxalic acid, so compost them safely or discard. Only the stalks are edible.

Dividing And Transplanting Rhubarb

Every 4-5 years, rhubarb plants become overcrowded and need division. This is best done in early spring or fall. Dig up the entire crown and use a sharp spade to split it into sections, each with at least one bud and a good root system.

Replant divisions at the same depth as the original plant. Space them 3-4 feet apart. You can share divisions with friends or expand your patch.

Dividing also rejuvenates old plants that have become woody or unproductive. It is a simple way to keep your rhubarb thriving for decades.

Seasonal Care Calendar For Virginia

Here is a quick monthly guide to keep your rhubarb healthy:

March: Remove winter mulch, apply fertilizer, and water if dry.
April: Harvest begins for established plants. Watch for pests.
May: Continue harvesting. Remove flower stalks.
June: Stop harvesting by mid-month. Apply compost mulch.
July-August: Water during dry spells. Remove dead leaves.
September: Fall planting possible. Divide overcrowded plants.
October: Apply winter mulch after first frost.
November-February: Dormant period. Minimal care needed.

Adjust these dates based on your local weather. In the mountains, everything happens a few weeks later. In coastal areas, you may start earlier.

Frequently Asked Questions

Can I plant rhubarb in summer in Virginia?
Summer planting is not recommended because heat stresses young plants. Stick to spring or fall for best results.

How long does it take for rhubarb to grow from seed?
Growing from seed takes longer. You will not harvest until the third year. Crowns are faster and more reliable.

What is the best month to plant rhubarb in Virginia?
March is ideal for spring planting in most of Virginia. For fall, aim for early October.

Does rhubarb need full sun in Virginia?
Yes, at least six hours of direct sun daily. Partial shade reduces stalk production.

Can I grow rhubarb in containers in Virginia?
Yes, but use a large pot (at least 18 inches deep) and water frequently. Container plants need more care in summer heat.

Final Tips For Success

Rhubarb is a low-maintenance plant once established. The biggest mistake Virginia gardeners make is planting too late in spring or not mulching for winter. Give your plants a good start, and they will reward you for years.

Remember to be patient. Do not harvest the first year, and only take a few stalks the second year. By the third year, you will have plenty for pies, sauces, and freezing.

If you live in the mountains, prioritize spring planting. In coastal areas, both spring and fall work well. Adjust your timing based on local frost dates and soil conditions.

With the right timing and care, you can enjoy fresh rhubarb from your Virginia garden every spring. It is a rewarding crop that adds beauty and flavor to your landscape.