Tellmann's honeysuckle (Redgold honeysuckle) care

Light

The Goldilocks zone. Not the south-facing windowsill (too hot, too direct), not the back of the room (too dim, growth stalls). Flowers best on a south-west facing wall or fence in full sun to light shade. Can also perform well on east or north-east exposures with dappled light, which reduces mildew risk. Root zone should always be shaded and kept cool, ideally with underplanting or a deep mulch. If you can't decide, a free phone lux-meter app aimed at the leaf at noon should read between 800 and 1,500 lux.

Watering

Watering tellmann's honeysuckle: weekly during dry spells; especially important in summer while in active growth. 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. Requires consistent moisture during the growing season; do not allow roots to dry out completely. Mulch the root zone generously to retain moisture. Reduce watering in autumn once growth slows. Well-established plants can withstand brief dry spells but flower better with consistent moisture.

Soil and pot

Tellmann's honeysuckle grows best in fertile, humus-rich, moist but well-drained soil, ph 6.0–7.5. Grows in any fertile, reasonably moist, well-drained soil. Enrich with organic matter at planting. Position the root zone in deep shade — at least 45–60 cm away from a wall base to avoid dry shadow zones. Mulch annually with leaf mould or composted bark. 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

Tellmann's honeysuckle sits happiest at around 50–70% humidity and -15–30°C (5–86°F). Appreciates moderate ambient humidity consistent with temperate woodland conditions. Good airflow around the foliage helps prevent powdery mildew which can be an issue in warm, still conditions. Average garden humidity in UK and US temperate zones is sufficient. 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 tellmann's honeysuckle sparingly. Apply a balanced granular fertiliser or well-rotted compost around the root zone in early spring. Follow with a high-potassium liquid feed every two weeks from late spring through midsummer. Avoid excessive nitrogen as it favours foliage growth over flowers. 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 tellmann's honeysuckle in the Growli community. Each is annotated with the most common cause so you know where to start.

• Powdery mildew — The most common issue, especially in warm, dry summers or crowded positions. Water consistently, mulch deeply, and ensure good air circulation around stems. Apply sulphur-based fungicide at first sign. Mildew is worse where roots dry out.
• Aphid infestation — Honeysuckle aphids cluster on new shoot tips causing distortion. Treat promptly with insecticidal soap or a strong jet of water. In established gardens, natural predators usually keep populations in check without chemical intervention.
• Failure to flower — Often a position problem — insufficient light reaching the canopy, or roots that are too dry. Ensure the stems receive adequate sun and mulch the root zone heavily. Newly planted specimens may need two to three seasons to produce a strong display.

Propagation

Take semi-ripe cuttings of 10–12 cm in mid-summer; insert in gritty compost with rooting hormone and maintain bottom heat of 18°C. Hardwood cuttings in late autumn also root readily. Simple layering of flexible stems in spring is the most reliable method for home propagation. 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

Tellmann's honeysuckle is mildly toxic to pets. As a Lonicera hybrid, the berries may cause mild gastrointestinal upset in pets and humans if consumed. Lonicera x tellmanniana is not individually assessed by the ASPCA, but the Lonicera genus berries are considered a mild GI irritant. Not classified as severely toxic, but keep berries away from children and pets. 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.

Tellmann's honeysuckle deep-dive guides

Every aspect of tellmann's honeysuckle care, each with its own calibrated guide:

• Tellmann's honeysuckle watering schedule
• Tellmann's honeysuckle light requirements
• Best soil mix for tellmann's honeysuckle
• Tellmann's honeysuckle fertilizing guide
• When to repot tellmann's honeysuckle
• How to propagate tellmann's honeysuckle
• Tellmann's honeysuckle growth rate & size
• Tellmann's honeysuckle cold hardiness
• Tellmann's honeysuckle temperature & humidity
• Is tellmann's honeysuckle toxic to cats & dogs?
• Is tellmann's honeysuckle toxic to cats?
• Is tellmann's honeysuckle toxic to dogs?
• Getting tellmann's honeysuckle to bloom

Featured in these plant shortlists

Tellmann's honeysuckle qualifies for 8 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best low-light houseplants — Houseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
• Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
• Best bathroom plants — Humidity-loving houseplants that also cope with lower light — suited to the steamy, often-dim conditions of a typical bathroom.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Best fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Tellmann's honeysuckle is also commonly called Tellmann's honeysuckle or Redgold honeysuckle.

• Alsobia 'San Miguel' care — light, water and common problems
• Gloxinia perennis care — light, water and common problems
• Gloxinia sylvatica care — light, water and common problems
• All 6887 plant care guides in the Growli library