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Plant care

Agastache 'Kudos Coral' (Kudos Coral hummingbird mint) care

Agastache 'Kudos Coral'

Also called Kudos Coral hummingbird mint.

RHS H5USDA 5-9Mildly toxic to petsIndoor Roughly 40-50 cm tall and 30-40 cm wide (16-20 in tall

Watering rhythm

Direct sun (at least 4-6 hours)

Water deeply during the first season while establishing, then only in prolonged drought once mature

Light

Direct sun (at least 4-6 hours)

Soil

Lean, gritty, sharply drained soil

Humidity

30-50%

Temp

-23 to 35°C

Pet safety

Mildly toxic to pets

Mature size

Roughly 40-50 cm tall and 30-40 cm wide (16-20 in tall

Care at a glance

Light

Most houseplants will scorch where agastache 'kudos coral' thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Needs full sun, at least 6-8 hours of direct light daily. Shade or crowding causes floppy, sparse growth and weak flowering; the compact Kudos habit holds best in bright, open positions. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for water deeply during the first season while establishing, then only in prolonged drought once mature for agastache 'kudos coral', but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Drought-tolerant once rooted in. Soggy soil, especially over winter, is the main killer. Let the soil dry between waterings and avoid overhead watering that wets the crown.

Soil and pot

Agastache 'Kudos Coral' grows best in lean, gritty, sharply drained soil. Prefers poor to average, free-draining soil with neutral to slightly alkaline pH. Add grit or sand to heavy clay. Rich, moisture-retentive ground shortens its life and reduces winter survival. 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

Agastache 'Kudos Coral' sits happiest at around 30-50% humidity and -23 to 35°C (-9 to 95°F). An outdoor garden perennial that favours dry air and good airflow. High humidity and damp, stagnant conditions encourage powdery mildew and crown rot. 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 agastache 'kudos coral' sparingly. Feed sparingly. A single light application of balanced slow-release fertiliser in spring is plenty; rich feeding produces lush, weak growth that flops and flowers poorly. No feeding needed in lean soils. 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 agastache 'kudos coral' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Winter crown rotWet, heavy soil over winter is the most common cause of death. Plant in sharply drained ground or raised beds and avoid mulching directly over the crown.
  • Powdery mildewWhite powdery coating on leaves in humid, crowded conditions. Improve airflow, space plants well and avoid overhead watering.
  • Flopping in rich soilOver-fed or shaded plants grow leggy and splay open. Grow lean and in full sun to keep the compact Kudos habit.
  • Short lifespanOften behaves as a short-lived perennial lasting 3-4 years. Take cuttings or allow some self-seeding to maintain the planting.

Propagation

Propagate by softwood or basal stem cuttings in late spring to early summer, or by careful division in spring. Named hybrids like 'Kudos Coral' will not come true from seed, so use vegetative methods to keep the cultivar. 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

Agastache 'Kudos Coral' is mildly toxic to pets. Agastache is not individually listed on the ASPCA Toxic/Non-Toxic Plants database, so its status is uncertain; treat with caution and verify with a vet. As an aromatic member of the mint family (Lamiaceae), large ingestions of the essential-oil-rich foliage may cause mild gastrointestinal upset (vomiting, diarrhoea) in cats and dogs. 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.

Agastache 'Kudos Coral' care — frequently asked questions

What is the common name for Agastache 'Kudos Coral'?

Agastache 'Kudos Coral' is most commonly called Agastache 'Kudos Coral', but it is also known as Kudos Coral hummingbird mint. The names refer to the same species, so care instructions for Agastache 'Kudos Coral' apply identically to anything sold as Kudos Coral hummingbird mint.

How much light does agastache 'kudos coral' need?

Agastache 'Kudos Coral' grows best in direct sun (at least 4-6 hours). Needs full sun, at least 6-8 hours of direct light daily. Shade or crowding causes floppy, sparse growth and weak flowering; the compact Kudos habit holds best in bright, open positions.

How often should I water agastache 'kudos coral'?

Water agastache 'kudos coral' water deeply during the first season while establishing, then only in prolonged drought once mature. Drought-tolerant once rooted in. Soggy soil, especially over winter, is the main killer. Let the soil dry between waterings and avoid overhead watering that wets the crown. 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 agastache 'kudos coral' toxic to cats and dogs?

Agastache 'Kudos Coral' is mildly toxic to pets. Agastache is not individually listed on the ASPCA Toxic/Non-Toxic Plants database, so its status is uncertain; treat with caution and verify with a vet. As an aromatic member of the mint family (Lamiaceae), large ingestions of the essential-oil-rich foliage may cause mild gastrointestinal upset (vomiting, diarrhoea) in cats and dogs.

What USDA hardiness zone does agastache 'kudos coral' grow in?

Agastache 'Kudos Coral' is rated for USDA zone 5-9 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Agastache 'Kudos Coral' deep-dive guides

Every aspect of agastache 'kudos coral' care, each with its own calibrated guide:

Featured in these plant shortlists

Agastache 'Kudos Coral' qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Agastache 'Kudos Coral' is also commonly called Kudos Coral hummingbird mint.