




💙 Large semi-double lavender-blue flowers • 🌸 Flowering from July to September • 🌳 Trained as a standard • ☀️ Full sun • ❄️ Hardy down to -20 °C • 🍂 Deciduous foliage
The Hibiscus syriacus Blue Chiffon® opens large lavender-blue flowers whose centers bear a crown of fine petals, forming the characteristic central pompom of the Chiffon® series. Native to East Asia, the althea is one of the few shrubs to flower in midsummer.
Its distinctive feature is its flowering period: from July to September, when almost all terrace shrubs have finished flowering. Magnolias, lilacs, and Ceanothus have long since finished when the althea begins to open its first buds.
Which hibiscus should you choose?
Eight altheas in the catalog, as standards or in bush form:
- Blue Chiffon® (this plant) — semi-double lavender-blue. The rarest shade among altheas.
- Lavender Chiffon® — light mauve with a deeper center (H90 cm | Pot Ø19 cm).
- Magenta Chiffon® — intense magenta pink (H90 cm | Pot Ø19 cm). The most vivid version.
- Starburst Chiffon® — white with a striped pink center (H90 cm | Pot Ø19 cm). The most contrasting.
- White Chiffon® — pure white (H90 cm | Pot Ø19 cm). The most refined.
- Tricolour — three cultivars grafted onto a single trunk (H90 cm | Pot Ø19 cm). The most spectacular.
- Hamabo — very pale pink with a purple center, bush form (H45 cm | Pot Ø17 cm). The softest shade.
- Woodbridge — deep pink with a red center, bush form (H45 cm | Pot Ø17 cm). The most colorful bush.
Light & location
Hibiscus requires full sun and warmth to flower abundantly. In partial shade, the shrub grows but produces few buds, and flowering remains sparse.
- Exposure: full sun — at least 6 hours of direct sun per day; this is essential for flowering.
- Location: terrace, south-facing balcony, entrance, path — sheltered from strong winds that damage the large flowers.
- Hardiness in a pot: down to -20 °C — the althea loses its leaves in winter and starts growing again late in spring.
- Soil type: rich and well-draining — planting soil amended with compost.
The althea breaks dormancy late, often in May: branches that are still bare in April do not mean the plant is dead.
Watering & care
The althea produces its flowers on new wood, which makes all the difference compared with spring-flowering shrubs: pruning is done at the end of winter and directly stimulates flowering. A rich, well-draining substrate supports this production, and the foliage always signals a problem before it worsens.
- Watering: regular from May to September — two to three times a week during peak flowering, greatly reduced once the leaves have fallen.
- Drainage: essential — never leave stagnant water in the saucer.
- Pruning: in February-March, cut back the previous year's shoots — the harder the pruning, the larger the flowers.
- Suckers: remove shoots that appear along the trunk; they spoil the standard form.
- Fertilizer: fertilizer for flowering shrubs, twice a month from May to August.
Each flower lasts only one day, but the shrub continuously produces new ones for two to three months: the faded flowers fall off on their own, without intervention.
Decor ideas & plant pairings
This is the flowering that saves a terrace in midsummer, when everything else has finished blooming and we enjoy the outdoors most.
- For continuous flowering, pair it with the 'Palibin' dwarf lilac — the lilac blooms in May, and the althea takes over from July to September.
- To brighten up winter, place a 'Blue Maid' holly next to it — its foliage and berries keep the space lively while the althea is bare.
- For a duo of blues, add a Ceanothus 'Victoria' — two staggered blue blooms, in May and then in July.
- To enhance the pot, a container made of terracotta or natural fiber keeps the substrate cool during the flowering period.
The Chiffon® series is sterile or nearly so: it produces virtually no seeds, which prevents the self-seeding typical of classic altheas.
Verdeia tips
- Prune firmly in February-March: rose of Sharon flowers on new wood. Cutting back the previous year's shoots to two or three buds produces fewer but noticeably larger flowers and keeps the crown compact.
- Don't worry about late leaf emergence: rose of Sharon is one of the last shrubs to start growing again, often in May. Bare branches in April are normal; scratching the bark to check for green underneath is enough to reassure yourself.
- Water generously in full bloom: producing flowers continuously for three months requires a lot of water. Water stress in July causes the buds to drop before they open.
Technical characteristics
- Botanical name: Hibiscus syriacus Blue Chiffon®
- Common name: Rose of Sharon, shrub althea
- Family: Malvaceae
- Origin: Eastern Asia
- Dimensions on delivery: H90 cm | Pot Ø19 cm
- Habit: trained as a standard, rounded crown
- Mature height: 2 to 2.50 meters in a pot
- Exposure: full sun, at least 6 hours per day
- Watering: regular during flowering, greatly reduced in winter
- Soil type: rich and well-drained
- Hardiness: down to -20 °C
- Growth: moderate, February pruning essential
- Foliage: deciduous, medium-green lobed leaves, late leaf emergence in May
- Flowering: July to September, large semi-double lavender-blue flowers with pompom-like centers
- Care: easy
- Toxicity: 🐾 non-toxic to animals and children
- Decorative style: Romantic / Colorful / Terrace
Each plant is unique: the height of the trunk, the density of the crown, and the abundance of flowering naturally vary depending on exposure.
Your plant, delivered with care
Every plant is hand-packed in a box specially designed for plants — secured, protected, ready to travel. It arrives in perfect condition, roots intact and foliage preserved, ready to take its place in your home.
Our Verdeia commitments
FAQ – Everything to know before adopting your Verdeia plant
How are my plants prepared before shipping?
All our plants are selected from our European partner nurseries. Before shipping, they are watered, cleaned, and protected with breathable, secure packaging. Each package is designed to ensure your plant arrives in perfect health, without any transport-related stress.
Will the plant look exactly like the photo?
The photos accurately represent the variety and the stated size. Since each plant is unique, slight differences in shape, foliage, or color may occur — and that’s part of their charm.
What are the delivery times and conditions?
Orders ship within 48 working hours, with tracked delivery in 2 to 5 working days via DPD. Shipping costs and the free-shipping threshold depend on your country — see our delivery page. You receive a tracking link as soon as your parcel leaves.
What should I do when my plant arrives?
Open your package as soon as you receive it and carefully remove the plant from its packaging. Let it acclimate for 24 hours in its new environment before watering. If it has been slightly stressed during transport, it will recover its shape after one or two days in the light.
What should I do if my plant arrives damaged?
Contact us within 48 hours with a photo of the issue. Our team will assess the situation and offer you the best solution: replacement, partial refund, or recovery advice.
Can I return a plant?
Since plants are living beings, standard returns are not possible. However, we guarantee good health upon delivery: if the plant arrives damaged, it will be replaced free of charge. For any other cases (order error, decorative pot, accessory), returns are possible within 14 days.

