Plant Quick Guide

Growing Zones:

5-8.

Mature Height:

8-12 ft

Mature Width:

6-8 ft

Sunlight:

Full (6-8 hours)

Spacing:

6-8 ft

Growth Rate:

Moderate

Flower Color:

White with red center

Pollinator:

Not significant; mainly ornamental.

Does Not Ship To:

AK, AZ, CA, HI, PR

Althea - Red Heart

Hibiscus syriacus 'Red Heart'
USDA Hardiness Zones: 5-8.
$54.95
SKU: ALTHEA03G

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Description

The Red Heart Althea (Hibiscus syriacus 'Red Heart') is a stunning and unique Rose of Sharon variety, prized for its showy white flowers with a bold red center. This deciduous shrub brings elegance and vibrant color to any garden, making it a standout choice for ornamental borders, hedges, or container planting. Its long bloom season and easy-care nature ensure year-round garden enjoyment.

Unique Features:

  • Distinctive Blooms: Large white flowers with a striking crimson-red eye create a dramatic focal point in the landscape.
  • Pollinator-Friendly: Attracts hummingbirds, butterflies, and bees, supporting a healthy ecosystem.
  • Long Blooming Period: Produces abundant flowers from midsummer to early fall, brightening gardens for weeks.
  • Heat and Drought Tolerant: Thrives in warm climates and handles dry spells once established.

Mature Size:

  • Height: 8–12 feet
  • Spread: 6–8 feet

USDA Hardiness Zones:

  • Zones 5–8

Care Instructions:

  • Light: Requires full sun to part shade; at least 6 hours of sunlight daily promotes optimal blooming.
  • Soil: Adapts to a wide range of soil types but thrives in well-drained, fertile soil.
  • Water: Water regularly during the first growing season. Once established, it is moderately drought-tolerant but appreciates deep watering during prolonged dry periods.
  • Pruning: Prune in late winter or early spring to maintain shape and encourage new growth, as flowers develop on new wood.
  • Fertilizer: Feed with a balanced, slow-release fertilizer in early spring for vigorous growth and prolific blooms.
  • Pests/Disease: Resistant to most pests and diseases. Maintain good air circulation and watch for occasional pests like aphids or Japanese beetles, treating as needed with an organic insecticide.

The Red Heart Althea is perfect for gardeners seeking a blend of classic beauty and vibrant contrast. Its captivating red-centered blooms and low-maintenance care make it an ideal addition to any landscape, whether used as a privacy screen, a border plant, or a striking standalone specimen.

Shipping

At Plant Me Green we handle, package and ship the products you order with the utmost care. We ship your plants using FedEx Ground® the following business day after you have completed checkout.

We are now offering $15 flat rate shipping for all tree orders! Replacement tree shipping cost will be $15 per box. We still cannot ship to some states and US territories based off the Agricultural Laws that may be in place. Please see below for all exclusions. 

If you have any questions concerning transit time for your order, please feel free to contact us at info@plantmegreen.com or toll free 855-817-5268.

Trees: Due to strict Agricultural Laws in place, we currently cannot ship to the following states: Alaska, Arizona, California, Hawaii. We cannot ship to Puerto Rico or international.

How to Plant
STEP 1) First, decide on a planting location. Consider carefully what kind of sun, soil, and growing-space your tree or shrub will need.
STEP 2) Once you've located the perfect spot, the hole you are digging must be at least double the width and as deep as the root system you are planting.
STEP 3) Remove the plant from the pot and place the root ball in the hole. The top of the root system should be level with the ground. Before placing the tree or shrub in the hole, use your hands to gently break up the root system.
STEP 4) Once the plant is in place, backfill the hole with native soil and any leftover potting material.
STEP 5) Pack down the soil to eliminate any air pockets.
STEP 6) When finished, water thoroughly.
Care Guide

Full sun, well-drained soil. Prune for shape. Water during dry periods. Enjoy Hibiscus syriacus 'Red Heart' Althea's vibrant blooms.

Customer Reviews

Based on 3 reviews
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A
Annie Ballard
My Althea order

I was impressed. The best packaged live plant I have ever received! Intact box and the soil was still moist! Have planted it and so far so good!

C
CJ Ancira
Pretty

So pretty - love the double ruffle blooms.

R
Rick Hill
Larger than expected

I hesitate to review a living plant purchase so soon after receiving it but I bought the double pink althea as a surprise gift for my wife. She was surprised both by the gift and by its large size. We look forward to seeing it bloom later this growing season.