SKU: 1324 Hydrangea Arborescens Penny Mac-2.5 Inch Starter Plant-these area starting to go dormant, be aware.

Features

• Growth Habit: Deciduous, rounded shrub with a dense, mounding form.
• Mature Size: 3–5 feet tall and 4–6 feet wide.
• Growth Rate: Moderate to fast-growing.
• Bloom Color: Large white flower clusters that may age to pale green.
• Bloom Time: Early summer through late summer.
• Fragrance: Very light to no noticeable fragrance.
• Fruit Flavor: None; not grown for edible fruit.
• Culinary Uses: None; plant parts are not considered edible.
• Medicinal Uses: Historically, some Native American groups used roots medicinally, but home medicinal use is not recommended.
• Wildlife Value: Flowers attract pollinators including bees and butterflies.
• Wildlife & Pest Resistance: Generally resistant to deer browsing once established, though young plants may require protection. Relatively pest-resistant with few serious insect issues.
• USDA Hardiness Zones: 3–9.
• Sun Preference: Full sun in cooler climates; partial shade or morning sun with afternoon shade in warmer regions.
• Drought Tolerance: Moderate once established; performs best with consistent moisture.
• Soil Preference: Rich, well-drained soil with ample organic matter.

When and How to Prune

• Since Annabelle blooms on new wood, pruning is simple and encourages vigorous flowering.
• Prune in late winter or early spring before new growth emerges.
• Remove dead, damaged, or weak stems.
• Cut stems back to 12–24 inches above the ground to encourage larger blooms and stronger growth.
• Light thinning of older stems can improve air circulation and plant structure.
• Avoid pruning in late summer or fall, as this may encourage tender new growth before winter.

Planting Instructions (From a 3.5" Pot)

1. Choose a location with morning sun and afternoon shade or filtered sunlight.
2. Dig a hole twice as wide as the pot and approximately the same depth as the root ball.
3. Gently remove the plant from the 3.5-inch pot and loosen any circling roots.
4. Place the root ball so the top sits level with the surrounding soil.
5. Backfill with native soil mixed with compost if desired.
6. Water thoroughly after planting to settle the soil.
7. Apply 2–3 inches of mulch around the plant, keeping mulch a few inches away from the stem.
8. Water regularly during the first growing season, especially during dry periods.

Overwintering Steps

1. After the first hard frost, apply a 2–4 inch layer of mulch around the root zone to insulate roots.
2. Leave stems standing through winter to help protect the crown and provide seasonal interest.
3. In colder regions, add extra mulch or shredded leaves around the base after the ground begins to freeze.
4. Avoid heavy fertilization after midsummer to prevent tender late-season growth.
5. Remove winter-damaged stems and perform annual pruning in late winter or early spring before new growth begins.
6. Resume regular watering and fertilization as new growth emerges in spring.

With its enormous white blooms, cold hardiness, and easy-care nature, Hydrangea arborescens ‘Annabelle’ remains one of the finest flowering shrubs for landscapes across much of North America.