Gregory s.n. (Dendrosenecio keniensis)

Photo: DwergenpaartjeCC BY-SA 4.0via Wikimedia Commonsresized / cropped

Gregory s.n. Plant Care

Dendrosenecio keniensis (Baker f.) Mabb.

Updated · Sources · How we source care data

Dendrosenecio brassica B. Nord. Senecio brassica R.E.Fr. & T.C.E.Fr. Senecio keniensis Baker f. Lobelia gregoriana Baker f. Sources:

🌱Herbs🌼Perennials🌻Annuals
Water

Every 7–14 days

Light

Full sun to partial shade

Temp

50–75°F

Humidity

40–70%

At a glance

How do you care for Gregory s.n.?

Plant Gregory s.n. in full sun to partial shade (USDA zones 12a) and water a young tree every 7–14 days until it is established. It tolerates temperatures of 50–75°F (10–24°C). Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.

What Is the Gregory s.n.?

Gregory s.n. (Dendrosenecio keniensis) belongs to the Asteraceae family within the Dendrosenecio genus. Gregory s.n. is also known as Lobelia deckenii.

Gregory s.n. displays a tall, single-stemmed growth habit, reaching up to 10 ft tall with a spread of approximately 2 ft. Gregory s.n. produces large yellow daisy-like flowers in clusters.

Leaf size: approximately 12 inches.

How Often Should You Water a Gregory s.n.?

Water a young or newly planted Gregory s.n. every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 7–14 days

Until established; then in dry spells

What Light Does the Gregory s.n. Need?

Gregory s.n. thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Gregory s.n. Prefer?

Dendrosenecio keniensis tolerates temperatures of 50–75°F. Gregory s.n. prefers humidity levels of 40–70%.

Temperature

50–75°F

Humidity

40–70%

What Soil Mix Works Best for a Gregory s.n.?

Well-draining sandy soil with added organic matter for moisture retention. Good drainage is essential for Gregory s.n. to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Gregory s.n.?

Feed Gregory s.n. every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every 6 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Gregory s.n.?

Choose a spot with full sun to partial shade and well-draining sandy soil with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Gregory s.n. is suited to USDA Zone 12a.

Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Gregory s.n.?

Gregory s.n. can spread to about 2 ft (0.6 m) and reach about 10 ft (3 m) tall. Space plants about 2 ft (0.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the tree spacing calculator.

How Do You Prune a Gregory s.n.?

Prune Gregory s.n. while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the tree in one year.

How Do You Care for a Gregory s.n. in Winter?

Gregory s.n. is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

How Do You Propagate a Gregory s.n.?

Gregory s.n. can be propagated through seeds. Similar propagation techniques also apply to dawe 663 plant care, which shares the same genus.

Is the Gregory s.n. Toxic to Pets and Children?

Toxic (caution)

Reported as toxic in our plant data. Not verified by the ASPCA.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Gregory s.n.?

Gregory s.n. is susceptible to aphids, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Gregory s.n. Need?

Gregory s.n. grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. In cooler regions, grow Gregory s.n. as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Gregory s.n. is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Dendrosenecio genus — compare its care with other Dendrosenecio species on PlantoScan.

Dendrosenecio is part of the Asteraceae plant family — browse all Asteraceae genera and species.

Gregory s.n. thrives in bright light and direct sun — see other bright-light plants.

More Dendrosenecio Species

Other Dendrosenecio species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Dendrosenecio keniensis (Baker f.) Mabb., family Asteraceae (first published in High Alt. Trop. Biogeogr. [Vuilleumier & Monasterio] 100. 1986) — World Flora Online record, IPNI name record.
  • Pet toxicity: Gregory s.n. is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Photo: Dwergenpaartje, CC BY-SA 4.0, Wikimedia Commons — original.
  • Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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