How do you root rose of sharon cuttings? Take 4 to 6 inch (10–15 cm) rose of sharon cuttings no thicker than a pencil, softwood in late spring or early summer or hardwood when the shrub is dormant. Dip the base in rooting hormone, bury the bottom half upright in a half sand, half potting soil mix, cover with clear plastic, and keep it at 65–75°F (18–24°C).
Key takeaway: Rose of sharon (Hibiscus syriacus, also called althea) is one of the easier shrubs to clone. Mississippi State University Extension lists althea among shrubs that root easily from hardwood cuttings, and University of Missouri Extension lists both softwood and hardwood cuttings. An Ask Extension expert notes that cuttings are the best way to copy cultivars such as ‘Jean d’Arc’ and ‘Paeoniflorus’, which may not produce viable seeds.
| Factor | Guideline | Source |
|---|---|---|
| Softwood rose of sharon cuttings | Late spring–early summer | Ask Extension |
| Hardwood cuttings | Late fall–early spring, dormant | Ask Extension; MSU |
| Cutting size | 4–6 in (10–15 cm), pencil-thin | Ask Extension |
| Rooting mix | Half sand, half sterile potting soil | Ask Extension |
| Temperature | 65–75°F (18–24°C) | Ask Extension |
| First root check | 4–6 weeks | Ask Extension |
When Should You Take Rose of Sharon Cuttings?
You have two windows. The Ask Extension answer says softwood rose of sharon cuttings are taken in late spring or early summer while the shrub is actively growing, and hardwood cuttings anytime from late fall into early spring when the shrub is dormant with no leaves, leaf buds or flowers. Take either type in the morning, when the shrub is most hydrated.
- Softwood: stems snap when bent; late spring to early summer.
- Hardwood: leafless dormant stems; late fall to early spring.
- Time of day: early morning.
How Do You Take Rose of Sharon Cuttings?
Choose two or three 4 to 6 inch (10–15 cm) stems no thicker than a pencil and cut each at a slight angle with a clean, sharp blade. For softwood cuttings, remove all leaves from the bottom half. Ideal softwood stems snap when bent, with fresh leaves at the tip, according to the Ask Extension expert.
- Pre-fill a small pot with moist half sand, half sterile potting soil.
- Cut 4–6 inch (10–15 cm) stems in the morning.
- Strip leaves from the bottom half.
- Dip the base in rooting hormone and tap off excess.
- Bury the bottom half, keeping the cutting upright.
- Cover with clear plastic that does not touch the leaves.
Do Rose of Sharon Cuttings Need Rooting Hormone?
Not strictly. The Ask Extension expert says rooting hormone isn’t necessary for rose of sharon cuttings but increases the likelihood of success. Pour a small amount into a separate cup, dip the cut end, tap off excess powder, and discard the leftover rather than reusing it. Our rooting hormone guide explains powder, gel and liquid types.
What Conditions Do Rose of Sharon Cuttings Need?
Moisture, bright light and warmth. The Ask Extension answer recommends bright, indirect light near a partly shaded window or outdoors in light shade, and temperatures between 65 and 75°F (18–24°C), using a propagation heat mat if it is cool. Keep clear plastic over the pot, but do not let it rest on the cutting. Our heat mats and humidity domes guide covers setups.
- Bright indirect light, not direct sun.
- 65–75°F (18–24°C) rooting zone.
- Moist but not soggy mix.
How Long Do Rose of Sharon Cuttings Take to Root?
Check rose of sharon cuttings for roots in four to six weeks by lightly tugging the base to feel if it is anchored, the Ask Extension expert advises. Rooting may take several months, depending on the cutting and conditions, so do not give up on a cutting that still looks green. Hardwood cuttings are usually slower than softwood cuttings because they start without leaves.
Can You Root Rose of Sharon Cuttings in Water?
The extension sources here describe a sand and potting soil mix rather than water. Because rose of sharon is a hibiscus, some growers try water rooting like tropical hibiscus, but plan to move cuttings to soil once roots form. Our hibiscus cuttings in water guide explains that method and the transition.
How Do You Store Hardwood Rose of Sharon Cuttings?
If you cut dormant stems before you can stick them, keep them cool and moist. Iowa State University Extension advises storing hardwood cuttings at 32 to 40°F (0–4°C) and away from fruit, which releases ethylene. Keep track of which end is the base, since cuttings must be planted right side up.
How Do You Care for Rooted Rose of Sharon Cuttings?
Harden them off gradually. The Ask Extension expert suggests cutting open the clear plastic and leaving it in place for a couple of days, then moving the cutting to light shade outdoors for about a week. Transplant into 2-gallon (7.6 L) nursery pots and grow for roughly a year before planting in a sunny spot with fast-draining soil. See our humidity dome guide for weaning tips.
Why Grow Rose of Sharon From Cuttings Instead of Seed?
Cuttings copy the parent exactly. The Ask Extension expert calls cuttings the best method of growing new rose of sharon bushes, especially for cultivars such as ‘Jean d’Arc’ and ‘Paeoniflorus’, which may not produce viable seeds. Rose of sharon cuttings also give you a shrub with the same flower color and form, while seedlings from mixed plantings can vary.
- Cultivars stay true to type.
- Works for shrubs that set little seed.
- Softwood and hardwood options extend the season.
FAQ About Rose of Sharon Cuttings
When do you take rose of sharon cuttings?
Softwood in late spring to early summer; hardwood when dormant.
How long should rose of sharon cuttings be?
About 4 to 6 inches (15 cm), no thicker than a pencil.
How long do rose of sharon cuttings take to root?
Check at 4 to 6 weeks; some take months.
Do rose of sharon cuttings need hormone?
No, but it improves the odds.
What temperature roots rose of sharon cuttings?
About 65 to 75°F (18–24°C).
Why use cuttings instead of seed?
Some cultivars may not set viable seed.
Sources
- Ask Extension — Rose of Sharon cuttings
- Mississippi State University Extension — Propagating Plants for the Home Landscape (P3952)
- University of Missouri Extension — Home Propagation of Garden and Landscape Plants (G6970)
- Iowa State University Extension — Propagation of Trees, Shrubs, and Vines from Hardwood Cuttings
- Photo credits (Wikimedia Commons, edited with titles): Hibiscus syriacus broad shrub by Willow Coville (CC BY-SA 4.0); (MHNT) Hibiscus syriacus White Chiffon Rose of Sharon flower – Les Martels, Giroussens Tarn by Didier Descouens (CC BY-SA 4.0); Hibiscus (Hibiscus syriacus) by Gzen92 (CC BY-SA 4.0)