How to Grow Petit Verdot
Wikimedia Commons
Petit Verdot
Vitis vinifera
vinePetit Verdot is a dark-skinned grape variety traditionally used as a blending wine in Bordeaux, France, prized for its deep color, high tannins, and peppery aromatics. It is a late-ripening cultivar that requires a warm, long growing season to achieve full maturity. The grape produces small, thick-skinned berries with concentrated flavors ideal for fine wine production.
When should you plant Petit Verdot in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Petit Verdot timeline · Pittsburgh, PA (Zone 6b)
-
Plant Petit Verdot
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Petit Verdot
Around Oct 14≈ 180 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Petit Verdot dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 8b-9b; requires warm climates with long growing seasons (similar to Cabernet Franc)
Sign up free to see if Petit Verdot grows in your zone — and get a personalized planting timeline.
Get my Petit Verdot timeline →Growth Stages
Dormancy & Budbreak
3-4 weeksVines emerge from winter dormancy in spring with tender shoots and leaves appearing. Budbreak is late compared to earlier ripening varieties.
Prune canes during dormancy (winter) to 1-2 buds per spur. Protect from late frosts. Apply dormant oil for pest management.
Shoot Growth & Canopy Development
6-8 weeksVigorous growth of shoots and leaves occurs. Flowers appear in late spring at the nodes. The canopy fills in significantly.
Manage shoot growth through canopy management—remove excess shoots, tie canes to trellis. Ensure adequate air circulation to prevent mildew. Thin flower clusters if over-cropping.
Flowering & Fruit Set
4-6 weeksSmall, inconspicuous flowers bloom and are pollinated. Tiny green berries form following successful pollination. Fruit set may be uneven.
Avoid excessive nitrogen which delays ripening. Water consistently during fruit set. Thin berries if necessary to achieve desired yield (typically 1-2 tons/acre for quality wine).
Veraison & Ripening
6-8 weeksBerries change color from green to dark purple-black (veraison begins around mid-August in warm regions). Sugar accumulates, tannins mature, and acidity drops gradually.
Reduce water slightly to concentrate flavors. Perform leaf removal on east-west facing canopy sides to enhance ripeness and UV exposure. Monitor Brix, pH, and titratable acidity to determine harvest readiness.
Harvest & Post-Harvest
1-2 weeksBerries reach full ripeness with dark coloring, high sugar content (21-25° Brix typical), and developed tannins. Clusters are hand-harvested or mechanically picked.
Harvest when Brix reaches 21-24° and pH is 3.3-3.7 for optimal wine quality. Cool harvested fruit promptly. After harvest, allow vines to harden off for dormancy. Remove old wood and diseased canes.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Sulfur dust or spray applied preventatively and during growing season; ensure good air circulation; remove infected leaves
-
Copper fungicide sprays; remove infected tissue; avoid overhead watering; improve canopy air flow
-
Use phylloxera-resistant rootstocks (standard practice); inspect for galls on roots and leaves; replant affected vines on resistant stock
-
Hand-pick in early morning; use pheromone traps; apply neem oil or spinosad in severe infestations
-
Increase irrigation to raise humidity; release predatory mites; use sulfur sprays; avoid over-fertilizing
-
Remove diseased clusters; improve air circulation; thin canopy; apply fungicides if pressure is high; avoid wet conditions at harvest
Uses
Premium Fine Wine Blending
CulinaryPetit Verdot is traditionally used as a blending component in Bordeaux-style wines, contributing 5-20% to blends. It adds structure, color intensity, peppery spice notes, and aging potential to wines dominated by Cabernet Sauvignon and Merlot. [source]
Varietal Wine Production
CulinaryIncreasingly produced as a stand-alone varietal wine, particularly in warm-climate regions like Australia, California, and Argentina. The resulting wines are bold, tannic, and age-worthy with dark fruit and peppery flavors. [source]
Resveratrol & Antioxidants
MedicinalRed wine from Petit Verdot grapes contains high levels of resveratrol and other polyphenolic antioxidants, which have been studied for cardiovascular and anti-inflammatory benefits. [source]
Grape Juice & Must
HouseholdFresh juice or must from Petit Verdot grapes can be used for non-fermented grape juice products, vinegars, or concentrated syrups. The high tannin content makes the juice notably astringent. [source]
Home Winemaking
CraftHome winemakers use Petit Verdot as a blending component or sole variety to create wine. The challenging ripening requirements make it popular in warm-climate home vineyards. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Petit Verdot is one of the latest-ripening Bordeaux varieties, typically harvested in late September to October in the Northern Hemisphere. Harvest when berries reach 22-25° Brix with pH 3.3-3.7 and titratable acidity of 6-8 g/L. Hand-harvest into small bins to preserve berry integrity and minimize oxidation. Use refractometer and pH meter to assess ripeness. Cool fruit immediately after harvest to preserve color and aromatics. Petit Verdot is rarely made as a stand-alone wine; harvest fruit intended for blending, allowing flexibility in picking timing based on winemaking goals.
Fun Facts
- 🌱 Petit Verdot's name means 'small green' in French, referring to its tendency to remain green longer than other varieties before finally ripening in late harvest season.
- 🌱 Petit Verdot was nearly extinct in Bordeaux by the 1990s due to its unpredictable ripening and low yields, but has experienced a renaissance as global warming extends growing seasons in traditionally cool wine regions.
- 🌱 The grape produces some of the smallest berries among Vitis vinifera varieties, but with the thickest skins, giving the juice a concentrated color and tannin profile ideal for structured, age-worthy wines.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Petit Verdot planting timeline
Tell us your zip code and we'll calculate exactly when to start Petit Verdot seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Petit Verdot timeline →