How to Grow Darrow Cranberry
Wikimedia Commons
Darrow Cranberry
Vaccinium macrocarpon 'Darrow'
fruitDarrow is a high-yielding cranberry cultivar developed for commercial and home production, known for its large, firm berries and excellent storage quality. It produces deep red fruits on low-growing, trailing vines that spread across wet, acidic bog environments. This cultivar is particularly valued for its disease resistance and consistent productivity.
When should you plant Darrow Cranberry 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 Darrow Cranberry timeline · Pittsburgh, PA (Zone 6b)
-
Plant Darrow Cranberry
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Darrow Cranberry
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Darrow Cranberry dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-7, with best performance in cooler regions with cool winters and adequate moisture
Sign up free to see if Darrow Cranberry grows in your zone — and get a personalized planting timeline.
Get my Darrow Cranberry timeline →Growth Stages
Establishment
Year 1Newly planted vines (year 1) develop shallow root systems and horizontal runners; minimal flowering; foliage is sparse but gradually expanding
Keep soil consistently moist; weed frequently to prevent competition; do not expect significant fruit; remove any flowers to encourage vegetative growth; mulch lightly with sand
Vegetative Growth & Runner Development
Years 1-2Vines (years 1-2) spread horizontally across soil, developing upright shoots; foliage becomes denser; roots establish deeper; occasional light flowering may occur but berries are minimal
Continue consistent moisture; limit weeding to perimeter; apply thin sand layer annually to promote branching; maintain weed-free growing area; monitor for pests but avoid heavy pesticide use during establishment
Early Flowering & Fruiting
Late April-May for flowers; August-October for fruit ripeningVines (year 2-3) produce more abundant upright shoots with small white/pink flowers in spring; light fruit set appears; berries begin turning red by late summer
Ensure consistent moisture during flowering and fruit development; thin weaker shoots if overcrowded; support fruit quality with adequate nutrients; monitor for early pests; begin regular scouting for disease
Full Production
Year 3 onward; April-May flowering; September-November harvestMature vines (year 3+) produce abundant white flowers on upright shoots in spring; heavy fruit set with large, firm dark-red berries by fall; dense vine coverage across bed
Maintain optimal moisture (flood-capable beds ideal); apply sand annually; monitor closely for pests and disease; fertilize conservatively with balanced fertilizer or organic amendments; prune to maintain vigor if needed
Harvest & Winter Dormancy
Harvest September-November; dormancy December-MarchMature berries fully color by late September through November depending on region; vines senesce in winter; plants are fully cold-hardy
Harvest when berries are fully dark red and firm; flood beds if possible for wet-harvest to reduce labor; allow winter resting period with standing water beneficial in cold climates; dormancy improves next year's bud set
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Monitor in spring; apply Bacillus thuringiensis (Bt) when larvae are young; flood beds in winter to kill pupae; remove infested fruit
-
Scout for damaged shoot tips in spring; prune infested tips; apply insecticidal soap if severe; avoid excessive nitrogen fertilizer
-
Monitor vine damage during dry periods; maintain consistent moisture to reduce stress; remove plant debris; spray with neem oil or insecticidal soap if population is high
-
Scout for rolled leaves with larvae inside; apply Bt in spring; encourage natural predators; remove affected foliage
-
Inspect regularly; use horticultural oils in dormant season; maintain plant vigor through proper moisture and nutrition; avoid excessive pesticide use
Uses
Fresh & Processed Fruit
CulinaryDarrow cranberries are tart and firm, excellent for fresh eating (with sugar), sauces, jams, juices, and baked goods. Their large size and good storage make them ideal for home and commercial processing. [source]
Urinary Tract Health & Antioxidants
MedicinalCranberries contain proanthocyanidins and other polyphenolic compounds linked to urinary tract health; also high in vitamin C and antioxidants supporting immune function and reducing inflammation. [source]
Natural Dye & Food Preservation
HouseholdCranberry juice and pulp produce red and pink dyes for textiles; the high acid and benzoic acid content naturally preserves jams and prepared foods without added preservatives. [source]
Native Habitat & Food Source
WildlifeCranberry beds provide habitat and food for native birds, pollinators, and beneficial insects; in natural bogs, cranberries are part of important wetland ecosystems. [source]
Ornamental & Landscaping
CraftThe low-growing, trailing habit and attractive foliage make cranberries suitable for ornamental bog gardens and sustainable landscaping in wet areas; small white flowers and red berries add seasonal interest. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Darrow berries ripen from late September through November, depending on climate. Berries should be fully dark red and firm. Wet harvest (flooding the bed and using a machine to dislodge berries) is most efficient for commercial production; dry harvest is done by hand-picking or mechanical scooping. Berries can float on flooded beds for collection. Handle gently to avoid bruising. Store at 35-45°F with high humidity; properly stored berries keep for 2-3 months or longer.
Fun Facts
- 🌱 Darrow was developed at the University of Wisconsin and is named after the researcher who contributed to its breeding; it is one of the most widely planted commercial cultivars in North America.
- 🌱 Cranberries naturally float due to air pockets inside the berry, making wet harvest possible—flooded beds can be flooded further and berries will bob to the surface for easy collection.
- 🌱 A single cranberry vine can live and produce fruit for over 100 years if properly maintained, making cranberry beds a long-term investment.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Darrow Cranberry planting timeline
Tell us your zip code and we'll calculate exactly when to start Darrow Cranberry 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 Darrow Cranberry timeline →