How to Grow Delicious Apple

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Delicious Apple

Malus domestica 'Delicious'

tree

The Delicious apple is a popular dessert variety known for its deep red color, distinctive elongated shape with pronounced lobes at the base, and sweet, mild flavor. These medium to large fruits are excellent for fresh eating and have been a commercial favorite in North America for over a century. The tree is moderately vigorous and produces reliable annual crops.

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Example Delicious Apple timeline · Pittsburgh, PA (Zone 6b)

Plant Delicious Apple
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Delicious Apple
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Delicious Apple dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; 8+ hours ideal for best fruit quality and color

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Water: Consistent moisture during growing season; approximately 1-2 inches per week via rainfall or irrigation. Reduce watering in fall to encourage dormancy. Avoid waterlogging; ensure good drainage.

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Spacing: 20 inches

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Days to maturity: 150-180 days from bloom to harvest; trees begin bearing fruit in 3-5 years

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Planting depth: Plant at same depth as root ball; graft union should be 2-4 inches above soil line

Soil

Type: Well-draining loamy soil, slightly acidic to neutral

pH: 6.0-7.0

Amendments:

Compost Well-rotted manure Peat moss for acidic adjustment Perlite or sand for drainage

Growing Zones

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Zones 4-8; thrives best in zones 5-7 with adequate winter chilling

4a 4b 5a 5b 6a 6b 7a 7b 8a

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Growth Stages

Dormancy & Budbreak

3-4 months (winter through early spring)

Tree is leafless and resting in winter; buds swell and burst in spring with emerging leaves and flower buds

Prune in late winter before budbreak. Apply dormant oil spray if needed for pest management. Ensure adequate winter chilling (600-900 hours below 45°F).

Flowering

2-3 weeks

White to pink blossoms appear in clusters; flowers are attractive and fragrant, requiring pollination for fruit set

Ensure pollinator presence; plant a compatible pollinator variety nearby (Gala, Fuji, or other varieties). Avoid spraying pesticides during bloom. Thin if frost threatens developing flowers.

Fruit Development & Growth

8-10 weeks

Tiny fruits emerge after pollination and grow steadily; foliage is full and green; tree dedicates energy to fruit enlargement

Thin fruits to 1 per cluster (6 inches apart) for larger, higher-quality apples. Water consistently, providing 1-2 inches weekly. Apply balanced fertilizer in early summer if needed. Monitor for pests and diseases.

Maturation & Color Development

4-6 weeks

Fruits reach full size and develop deep red color; sugar content increases; apples become firm and flavorful

Continue regular watering but reduce nitrogen fertilizer to avoid soft fruit. Monitor ripeness by taste test; fruits mature unevenly on the tree. Watch for insect damage and disease.

Harvest & Post-Harvest

Harvest period 2-4 weeks; storage extends utility for months

Apples reach peak ripeness and are ready for picking; tree may show signs of stress if over-bearing

Harvest when fruits detach easily with gentle twist; they will not ripen further after picking. Store at 32-40°F with high humidity for extended storage. Prune after harvest to shape tree and remove diseased wood.

Companion Planting

Plan your garden →

Plant with:

Borage Chives Dill Fennel Garlic Marigolds Nasturtiums Yarrow

Avoid planting near:

Black walnut Potato Fennel (in some cases due to allelopathy)

Common Pests

Remove infested fruits immediately; use pheromone traps for monitoring; apply spinosad or kaolin clay in early summer; practice good sanitation
Hang yellow sticky traps in late June; remove and destroy infested fruit; apply spinosad according to label; thin fruit to reduce egg-laying sites
Handpick affected fruitlets; apply neem oil or insecticidal soap in spring when sawfly larvae are active
Monitor with hand lens; spray dormant oil in late winter; use miticides or sulfur if populations increase in summer; encourage predatory mites
Spray dormant oil in late winter; apply horticultural oil in summer for crawler stages; scrub trunks to remove overwintering scales

Uses

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Fresh eating and desserts

Culinary

Delicious apples are primarily enjoyed fresh for their sweet, mild flavor and crisp texture. They are excellent sliced in salads, served as healthy snacks, and used in desserts like apple pie and tarts. [source]

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Juice and cider production

Culinary

The sugar content and flavor profile of Delicious apples make them suitable for fresh juice blending, though they are not traditionally a cider apple. They blend well with other varieties to improve sweetness. [source]

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Natural storage and preservation

Household

Due to their long storage life when kept cool and humid, Delicious apples are excellent for extended home storage, reducing food waste and providing fresh fruit for months. [source]

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Nutritional and digestive health

Medicinal

Apples contain fiber (especially in the skin), polyphenols, and vitamin C. The soluble fiber aids digestive health, while polyphenols provide antioxidant benefits. [source]

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Pollinator and wildlife support

Wildlife

Apple blossoms provide early-season nectar and pollen for honeybees and native pollinators. The tree also offers shelter and fruit resources for birds and small mammals. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Delicious apples are typically ready to harvest in September-October depending on location and season. Apples are ripe when they reach deep red color and detach easily from the branch with a gentle upward twist—the fruit should have a slight waxy bloom. Use the taste test: a ripe apple will be sweet and crisp. Harvest frequently as apples mature unevenly. Store at 32-40°F (0-4°C) with 90-95% humidity for maximum storage life of 3-6 months. Handle carefully to avoid bruising.

Fun Facts

🌱 The Delicious apple was discovered as a chance seedling in Iowa in 1870 and became one of the most commercially important apple varieties in North America, at one point accounting for over 50% of all apples grown in the United States.
🌱 Delicious apples have a distinctive shape with five prominent lobes at the blossom end, which is unique among apple varieties and makes them instantly recognizable.
🌱 The tree requires cross-pollination from another compatible apple variety to set fruit; planting two different varieties significantly increases yield and fruit quality.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Annual Full Sun Pollination

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