Growli

Plant care

Flowering currant (Blood currant) care

Ribes sanguineum

Also called Flowering currant, Red flowering currant, Blood currant.

RHS H5USDA 6–10Mildly toxic to petsIndoor 2.0–3.0 m tall

Watering rhythm

Bright indirect light (just back from a sunny window)

Weekly when establishing; drought-tolerant once mature

Light

Bright indirect light (just back from a sunny window)

Soil

Well-drained loam, chalk, or sandy soil, pH 6.0–8.0

Humidity

40–70%

Temp

-20 to 30°C

Pet safety

Mildly toxic to pets

Mature size

2.0–3.0 m tall

Care at a glance

Light

Bright but filtered. Flowering currant burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Best flowering performance in full sun to partial shade. Tolerates a north-facing or partially shaded wall, though flower display is reduced. An excellent choice for woodland edges and mixed shrub borders in UK gardens. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering flowering currant: weekly when establishing; drought-tolerant once mature. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Once established (after 2–3 years), flowering currant tolerates dry spells well. Water during prolonged summer drought to maintain vigour. Mulch around the base to conserve soil moisture and reduce stress.

Soil and pot

Flowering currant grows best in well-drained loam, chalk, or sandy soil, ph 6.0–8.0. Highly adaptable to most well-drained soils including chalk and clay, provided drainage is reasonable. Thrives in average garden soil without heavy amendment. Avoid waterlogged conditions. Grows well in urban and coastal gardens. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Flowering currant sits happiest at around 40–70% humidity and -20 to 30°C (-4 to 86°F). Tolerates the cool, moderately humid conditions of maritime temperate climates (particularly suited to UK conditions). Powdery mildew can occur in still, warm summer conditions but is rarely severe on established plants. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed flowering currant sparingly. Apply a general-purpose balanced fertiliser in early spring to encourage vigorous flowering shoots. A mulch of garden compost around the base annually is usually sufficient in fertile garden soils. Avoid high-nitrogen feeds. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on flowering currant in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Powdery mildewWhite powdery coating on leaves in late summer, more common in dry, warm conditions. Improve airflow by thinning old wood after flowering; apply a sulphur-based fungicide at first sign if appearance is important.
  • Aphid coloniesWoolly or currant aphids may colonise young growth in spring, causing leaf curl and distortion. Blast with water or spray insecticidal soap targeting growing shoot tips. Natural predators (ladybirds, hoverflies) usually suppress populations by early summer.
  • Poor flowering after hard pruningFlowers form on wood produced the previous year. Hard pruning in late summer or autumn removes the flowering wood. Prune immediately after flowering finishes (April–May) to allow maximum regrowth for the following season's display.

Propagation

Semi-ripe cuttings taken in midsummer (July–August) root readily in free-draining compost under a cold frame or with bottom heat. Hardwood cuttings in winter are also effective. Established plants layer naturally where low branches contact the soil. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Flowering currant is mildly toxic to pets. Ribes sanguineum berries and foliage are mildly toxic to dogs and cats if ingested in quantity; gastrointestinal upset (vomiting, diarrhoea) has been reported. Not individually listed by ASPCA, but caution is advised. The berries are unpalatable rather than truly hazardous in small amounts. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Flowering currant care — frequently asked questions

What is the common name for Ribes sanguineum?

Ribes sanguineum is most commonly called Flowering currant, but it is also known as Flowering currant, Red flowering currant, Blood currant. The names refer to the same species, so care instructions for Flowering currant apply identically to anything sold as Blood currant.

How much light does flowering currant need?

Flowering currant grows best in bright indirect light (just back from a sunny window). Best flowering performance in full sun to partial shade. Tolerates a north-facing or partially shaded wall, though flower display is reduced. An excellent choice for woodland edges and mixed shrub borders in UK gardens.

How often should I water flowering currant?

Water flowering currant weekly when establishing; drought-tolerant once mature. Once established (after 2–3 years), flowering currant tolerates dry spells well. Water during prolonged summer drought to maintain vigour. Mulch around the base to conserve soil moisture and reduce stress. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is flowering currant toxic to cats and dogs?

Flowering currant is mildly toxic to pets. Ribes sanguineum berries and foliage are mildly toxic to dogs and cats if ingested in quantity; gastrointestinal upset (vomiting, diarrhoea) has been reported. Not individually listed by ASPCA, but caution is advised. The berries are unpalatable rather than truly hazardous in small amounts.

What USDA hardiness zone does flowering currant grow in?

Flowering currant is rated for USDA zone 6–10 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Flowering currant deep-dive guides

Every aspect of flowering currant care, each with its own calibrated guide:

Featured in these plant shortlists

Flowering currant qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Flowering currant is also known as Flowering currant, Red flowering currant, and Blood currant.