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Plant care

Verbena × hybrida 'Superbena Stormburst' (Superbena Stormburst Verbena) care

Verbena × hybrida 'Superbena Stormburst'

Also called Superbena Stormburst Verbena, Bicolor Trailing Verbena.

RHS H3USDA 9-11Mildly toxic to petsIndoor Around 15-30 cm tall with a trailing spread of 45-60 cm or more.

Watering rhythm

2-4days

When the top 3-4 cm of soil is dry, about every 2-4 days in summer

Light

Direct sun (at least 4-6 hours)

Soil

Fertile, well-drained loam or premium potting mix

Humidity

40-60%

Temp

15-32°C

Pet safety

Mildly toxic to pets

Mature size

Around 15-30 cm tall with a trailing spread of 45-60 cm or more.

Care at a glance

Light

Aim for at least 4-6 hours of direct sun on the leaves. Requires full sun, ideally 6-8 hours or more daily, to flower at its best and stay compact. Too little light produces weak, stretched stems and reduced bloom. If your only bright window faces south, that's perfect for verbena × hybrida 'superbena stormburst' — same window any aroid would fry on.

Watering

Watering verbena × hybrida 'superbena stormburst': when the top 3-4 cm of soil is dry, about every 2-4 days in summer. 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. Likes consistent moisture during active growth but resents standing water. Water deeply at the base and let the surface dry slightly between waterings. Hanging baskets dry quickly and may need daily watering in hot weather.

Soil and pot

Verbena × hybrida 'Superbena Stormburst' grows best in fertile, well-drained loam or premium potting mix. Demands excellent drainage; soggy soil causes root rot. A slightly acidic to neutral pH near 6.0-7.0 is ideal. In containers, use a free-draining peat-free mix amended with perlite to prevent waterlogging. 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

Verbena × hybrida 'Superbena Stormburst' sits happiest at around 40-60% humidity and 15-32°C (59-90°F). Tolerates typical outdoor humidity and is more mildew-resistant than older verbenas, but still benefits from open spacing and air movement to keep foliage healthy in muggy spells. If you keep the room above 15 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 verbena × hybrida 'superbena stormburst' sparingly. Feed regularly, every 1-2 weeks for vigorous container plants, with a balanced water-soluble fertiliser; this heavy-blooming Superbena is a hungry grower. A high-potash feed supports flowering. Reduce feeding as growth slows in autumn. 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 verbena × hybrida 'superbena stormburst' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Root rot from overwateringTrailing verbenas rot quickly in waterlogged baskets. Use a free-draining mix, ensure drainage holes, and let the surface dry between waterings.
  • Reduced flowering in shadeBlooms thin out without full sun. Relocate baskets to the sunniest position to restore vigour and colour.
  • Aphids and whiteflyFeed on soft new growth and can spread quickly in sheltered baskets. Hose off and apply insecticidal soap as needed.
  • Mid-season flaggingLong-trailing stems can grow tired and bare at the base. A light shear and a feed in midsummer triggers fresh growth and renewed bloom.

Propagation

Propagate from softwood cuttings in late spring or summer, rooting tip cuttings in a moist, gritty medium under warmth and bright indirect light. This patented cultivar does not come true from seed, so vegetative cuttings are the only way to reproduce it. 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

Verbena × hybrida 'Superbena Stormburst' is mildly toxic to pets. Garden verbena (Verbena × hybrida) is not individually listed on the ASPCA toxic or non-toxic plant database. ASPCA does list 'Lemon Verbena' (Lippia citriodora) as toxic from its essential oils, while 'Sand Verbena' (genus Abronia) is non-toxic — but neither covers this bedding hybrid. Because the status is unconfirmed by ASPCA, treat with caution and verify with a vet; eating plant material can cause mild stomach upset. 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.

Verbena × hybrida 'Superbena Stormburst' care — frequently asked questions

What is the common name for Verbena × hybrida 'Superbena Stormburst'?

Verbena × hybrida 'Superbena Stormburst' is most commonly called Verbena × hybrida 'Superbena Stormburst', but it is also known as Superbena Stormburst Verbena, Bicolor Trailing Verbena. The names refer to the same species, so care instructions for Verbena × hybrida 'Superbena Stormburst' apply identically to anything sold as Superbena Stormburst Verbena.

How much light does verbena × hybrida 'superbena stormburst' need?

Verbena × hybrida 'Superbena Stormburst' grows best in direct sun (at least 4-6 hours). Requires full sun, ideally 6-8 hours or more daily, to flower at its best and stay compact. Too little light produces weak, stretched stems and reduced bloom.

How often should I water verbena × hybrida 'superbena stormburst'?

Water verbena × hybrida 'superbena stormburst' when the top 3-4 cm of soil is dry, about every 2-4 days in summer. Likes consistent moisture during active growth but resents standing water. Water deeply at the base and let the surface dry slightly between waterings. Hanging baskets dry quickly and may need daily watering in hot weather. 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 verbena × hybrida 'superbena stormburst' toxic to cats and dogs?

Verbena × hybrida 'Superbena Stormburst' is mildly toxic to pets. Garden verbena (Verbena × hybrida) is not individually listed on the ASPCA toxic or non-toxic plant database. ASPCA does list 'Lemon Verbena' (Lippia citriodora) as toxic from its essential oils, while 'Sand Verbena' (genus Abronia) is non-toxic — but neither covers this bedding hybrid. Because the status is unconfirmed by ASPCA, treat with caution and verify with a vet; eating plant material can cause mild stomach upset.

What USDA hardiness zone does verbena × hybrida 'superbena stormburst' grow in?

Verbena × hybrida 'Superbena Stormburst' is rated for USDA zone 9-11 (treated as a summer annual in colder zones) and RHS hardiness H3. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Verbena × hybrida 'Superbena Stormburst' deep-dive guides

Every aspect of verbena × hybrida 'superbena stormburst' care, each with its own calibrated guide:

Featured in these plant shortlists

Verbena × hybrida 'Superbena Stormburst' 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

Verbena × hybrida 'Superbena Stormburst' is also commonly called Superbena Stormburst Verbena or Bicolor Trailing Verbena.