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HouseMix Hoya Mix kraft bag, front label
Plant-specific blend

Hoya & Epiphyte Potting Mix

An epiphyte everyday blend — chunky enough to keep clinging roots oxygenated, moist enough to hold the canopy humidity hoyas, velvet anthuriums, staghorn ferns, and jungle cacti grew up with. Sits between the orchid mix and the aroid mix: bark-forward structure with a steady moisture buffer.

Ideal for

  • All hoyas (carnosa, kerrii, linearis, pubicalyx, and more)
  • Velvet Anthuriums (clarinervium, crystallinum, warocqueanum)
  • Staghorn Fern (potted; not mounted)
  • Christmas / Thanksgiving / Easter Cactus (Schlumbergera)
$6.99

How would you like it?

Small-batch mixed
Free over $35
30-day guarantee

What hoya roots actually want

Air. Moisture. Steady, slow nutrition.

Most generic potting soil was built for outdoor garden beds — heavy, fine, and designed to hold water under sun and wind. Indoors, that same mix slowly suffocates the roots it's supposed to feed.

Air-rich, bark-forward structure — epiphyte roots grip and breathe

Fast drainage with a small moisture buffer at the surface

A wet-then-dry rhythm, not constant moisture

Slightly acidic pH around 5.5–6.5

What’s in the bag

7 ingredients

One forest floor, rebuilt in a bag

Each component does a specific job — together they recreate the soft, breathable, slowly-feeding ground these plants evolved in.

Chunky Bark

Chunky Bark

Improves aeration and drainage, mimics natural epiphytic environments for aroids and orchids.

Pumice

Pumice

Improves drainage and aeration, especially beneficial for succulents and cacti.

Coco Coir

Coco Coir

Retains moisture while remaining airy, pH neutral and environmentally friendly.

Sphagnum Moss

Sphagnum Moss

Excellent moisture retention and aeration, antimicrobial properties, great for epiphytes.

Charcoal

Charcoal

Adsorbs salts, fertilizer residue, and bark-breakdown byproducts before they build up around roots. A cleanup ingredient, not a food source — we use it in Orchid and Hoya mixes.

Worm Castings

Worm Castings

Provides slow-release nutrients and beneficial microbes, improves soil structure.

Biochar

Biochar

Hosts beneficial microbes, holds a little moisture and nutrients between waterings, and buffers the root zone. Our default carbon amendment for most houseplant mixes.

Why generic potting soil fails indoor plants

It’s not you. It’s the soil

Most bagged potting mix is built for outdoor garden beds — dense, fine, designed to hold water for weeks under sun and wind. Indoors, that same mix slowly suffocates the roots it’s supposed to feed.

Mushy stems or rotted base

Soil held water against the crown longer than an epiphyte can tolerate — rot follows within a week.

Wrinkled, limp leaves

Roots damaged underground. The leaves can't pull water up anymore — usually a sign of past overwatering.

Bud blast (flowers drop before opening)

Watering swing, draft, or sudden move. A breathable mix buffers small swings; the rest is keeping the plant put.

No blooms after years of growth

Hoyas need bright light and a touch of stress to flower. The mix gets the roots right; light does the rest.

Yellow leaves at the base

Generic mix stayed wet too long; the lowest leaves pay the price first as the rootball drowns.

Why this isn’t outdoor potting soil

Built for indoor life

Outdoor garden soil is built for heavy beds, constant wind, and direct sun, with enough drainage for daily downpours. Ours is built for the opposite — low light, dry indoor air, and the inconsistent watering schedules of real life. Different problem, different mix.

Indoor-tuned

Engineered around low airflow, filtered light, and indoor humidity — not outdoor weather.

Peat-free

We use coco coir instead of peat moss. Same moisture retention, no peat-bog destruction.

Small-batch

Mixed by hand in small batches, not blown out of an industrial line.

Roots need air

Most houseplantsDon’t die fast.They drown slowly.

Soggy soil suffocates roots. Without air and drainage, rot creeps in from the bottom up.

Don’t do this
01Soil + rhythm

Use an open mix.
Water on rhythm.

Use a fast-draining mix so water moves through and pulls fresh air back to the roots — and water on the dry-down rhythm, not a weekly calendar.

Our Hoya Mix is tuned to this dry-down curve — moisture falling from just-watered to bone dry. Re-water when the line crosses the shaded band.

Just watered
Bone dry
Water around here

Stretches in low-light winter; tightens in bright, warm summer rooms. Many hoyas bloom better with a controlled dry-down between waterings.

02The pot

Choose a pot that actually drains.

Even a perfect mix drowns in a pot with no escape. Keep the plant in its nursery pot — the one with drainage holes — and drop it into your decorative pot.

Why drop-in pots work

HouseMix pots — coming soon

Before you buy

Everything else you need

Common questions

What people ask before buying

  • The small (1.5 qt) bag fully repots one 6″ pot or two 4″ pots. The large (7 qt) handles a 10″ pot, three 6″ pots, or six 4″ pots.

Sized to your pot

Pair it with a repot kit

Get this mix sized to your hoya's pot.

Skip the math. Pick the pot diameter and we’ll send the right amount of hoya mix, plus an optional nursery pot and compostable mess mat.

Build a repot kit

From $6.99 · full kit add-on +$6.

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Each one is tuned for a different kind of root. Built the same way.

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