Growli

Plant care

Bear Tupelo (Bear Blackgum) care

Nyssa ursina

Also called Bear Tupelo, Bear Blackgum.

RHS H5USDA 7-9Pet-safeIndoor 4–8 m tall (13–26 ft)

Watering rhythm

Bright indirect light (just back from a sunny window)

Regularly; keep consistently moist

Light

Bright indirect light (just back from a sunny window)

Soil

Moist, acidic, humus-rich loam or sandy loam

Humidity

Moderate to high (50–80% RH)

Temp

-12 to 38°C

Pet safety

Pet-safe

Mature size

4–8 m tall (13–26 ft)

Care at a glance

Light

In the wild bear tupelo grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Performs best in full sun to partial shade. In the wild it grows at woodland edges and wet clearings; at least 4–6 hours of direct sun promotes the richest autumn colour and best fruit set. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for regularly; keep consistently moist for bear tupelo, 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. Nyssa ursina naturally colonises wet flatwoods and seasonally flooded soils. Water deeply and regularly, especially during establishment. Tolerates periodic waterlogging; never allow the root zone to dry out completely.

Soil and pot

Bear Tupelo grows best in moist, acidic, humus-rich loam or sandy loam. Prefers acidic soils with pH 4.5–6.0, rich in organic matter. Tolerates poorly drained and seasonally saturated conditions. Amend heavy clay with organic matter to improve aeration while retaining moisture. 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

Bear Tupelo sits happiest at around Moderate to high (50–80% RH) humidity and -12 to 38°C (10 to 100°F). Native to humid, subtropical Florida and Alabama environments. Tolerates the naturally humid outdoor climate of USDA zones 7–9; no supplemental humidity management required in typical garden settings. 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 bear tupelo sparingly. Apply a balanced, slow-release acidic fertiliser (e.g. 10-10-10 formulated for acid-loving plants) in early spring. Avoid over-feeding — Nyssa species are adapted to low-fertility wetland soils; excess nitrogen promotes weak growth. 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 bear tupelo in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Transplant shockNyssa has a deep taproot and resents root disturbance. Always plant container-grown specimens in early spring; avoid moving established trees. Mulch heavily to conserve moisture during establishment.
  • Leaf scorch in dry conditionsIn periods of drought or on free-draining soils, leaf edges brown and scorch. Increase irrigation frequency and apply a deep organic mulch (10 cm) to retain soil moisture around the root zone.
  • Iron chlorosis on alkaline soilsYellowing between leaf veins (interveinal chlorosis) occurs when soil pH rises above 6.5. Acidify with elemental sulphur or use chelated iron foliar spray; recheck soil pH annually.

Propagation

Propagate by seed — stratify fresh seed in moist sand at 4°C for 60–90 days before sowing in spring. Softwood cuttings in early summer with bottom heat (24°C) and rooting hormone can succeed but are variable. Grafting onto Nyssa sylvatica rootstock is used commercially for cultivar production. 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

Bear Tupelo is pet-safe. Nyssa (tupelo) species are not listed by ASPCA as toxic to dogs or cats. The fruit, bark, and foliage have no documented toxic principles; birds and bears consume the drupes freely. No caution is warranted for household 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.

Bear Tupelo care — frequently asked questions

What is the common name for Nyssa ursina?

Nyssa ursina is most commonly called Bear Tupelo, but it is also known as Bear Tupelo, Bear Blackgum. The names refer to the same species, so care instructions for Bear Tupelo apply identically to anything sold as Bear Blackgum.

How much light does bear tupelo need?

Bear Tupelo grows best in bright indirect light (just back from a sunny window). Performs best in full sun to partial shade. In the wild it grows at woodland edges and wet clearings; at least 4–6 hours of direct sun promotes the richest autumn colour and best fruit set.

How often should I water bear tupelo?

Water bear tupelo regularly; keep consistently moist. Nyssa ursina naturally colonises wet flatwoods and seasonally flooded soils. Water deeply and regularly, especially during establishment. Tolerates periodic waterlogging; never allow the root zone to dry out completely. 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 bear tupelo toxic to cats and dogs?

Bear Tupelo is pet-safe. Nyssa (tupelo) species are not listed by ASPCA as toxic to dogs or cats. The fruit, bark, and foliage have no documented toxic principles; birds and bears consume the drupes freely. No caution is warranted for household pets.

What USDA hardiness zone does bear tupelo grow in?

Bear Tupelo is rated for USDA zone 7-9 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Bear Tupelo deep-dive guides

Every aspect of bear tupelo care, each with its own calibrated guide:

Featured in these plant shortlists

Bear Tupelo qualifies for 10 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best pet-safe houseplantsHouseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
  • Best plants for a north-facing windowHouseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
  • Best humidity-loving houseplantsHouseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
  • Best flowering houseplantsIndoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
  • Best pet-safe flowering plantsFlowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
  • Best pet-safe plants for bright lightNon-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
  • Best pet-safe large indoor plantsBig, floor-standing houseplants the ASPCA lists as non-toxic to cats and dogs — a statement plant that is safe around pets.
  • Best houseplants for a cool roomHouseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
  • Best cat-safe plantsHouseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
  • Best dog-safe plantsHouseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
  • Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Bear Tupelo is also commonly called Bear Tupelo or Bear Blackgum.