Growli

Soil & potting-mix library

The best soil for your plant — an exact mix for 200 species.

Pick a plant for a part-by-part potting-mix recipe, why that species needs that exact structure, what the wrong mix does, and the pH and drainage that matter. No generic advice — a desert-cactus gritty mix reads nothing like an orchid bark mix or a fern moisture-retentive mix, because every recipe is built from the plant's real roots.

Chunky aroid mix — monstera, philodendron, pothos

Climbing rainforest aroids want roughly half their volume as bark and perlite. Air pockets matter as much as moisture.

Standard houseplant mix

Easy-going indoor plants that just need a free-draining general mix with added perlite so the rootball can breathe.

Best soil for fiddle leaf fig

Ficus lyrata

Well-draining indoor tree mix

Best soil for dracaena

Dracaena fragrans / marginata

Free-draining potting compost

Best soil for peperomia

Peperomia obtusifolia

Free-draining mix with extra perlite

Best soil for cast iron plant

Aspidistra elatior

Standard potting compost

Best soil for chinese evergreen

Aglaonema commutatum

Free-draining houseplant mix

Best soil for parlor palm

Chamaedorea elegans

Free-draining potting compost

Best soil for rubber plant

Ficus elastica

Free-draining indoor tree mix

Best soil for schefflera

Schefflera arboricola

Free-draining houseplant mix

Best soil for spider plant

Chlorophytum comosum

Standard potting compost

Best soil for croton

Codiaeum variegatum

Rich, well-drained potting compost

Best soil for dieffenbachia

Dieffenbachia seguine

Free-draining potting compost

Best soil for areca palm

Dypsis lutescens

Free-draining potting compost

Best soil for african violet

Saintpaulia ionantha

Light African violet mix

Best soil for english ivy

Hedera helix

Standard potting compost

Best soil for wandering dude

Tradescantia zebrina

Standard potting compost

Best soil for money tree

Pachira aquatica

Free-draining potting compost

Best soil for lucky bamboo

Dracaena sanderiana

Pebble-and-water vase, or standard houseplant mix

Best soil for rex begonia

Begonia rex

Light, peat-free potting mix with perlite

Best soil for chinese money plant

Pilea peperomioides

Free-draining houseplant mix

Best soil for weeping fig

Ficus benjamina

Free-draining houseplant mix

Best soil for dragon tree

Dracaena marginata

Free-draining houseplant mix

Best soil for corn plant

Dracaena fragrans

Free-draining houseplant mix

Best soil for cordyline

Cordyline fruticosa

Rich free-draining houseplant mix

Best soil for sago palm

Cycas revoluta

Gritty free-draining mix

Best soil for lady palm

Rhapis excelsa

Rich free-draining mix

Best soil for kentia palm

Howea forsteriana

Free-draining loam-based mix

Best soil for fishtail palm

Caryota mitis

Rich free-draining mix

Best soil for ming aralia

Polyscias fruticosa

Free-draining houseplant mix

Best soil for wax plant

Hoya carnosa

Free-draining chunky mix

Best soil for ficus audrey

Ficus benghalensis

Free-draining houseplant mix

Best soil for white bird of paradise

Strelitzia nicolai

Rich free-draining mix

Best soil for lemon button fern

Nephrolepis cordifolia

Rich free-draining mix

Best soil for begonia

Begonia × hortensis

Rich free-draining loam

Moisture-retentive mix — ferns, calathea, fittonia

Forest-floor plants that brown the instant they dry out. They want a mix that holds moisture but still has air in it.

Free-draining succulent mix

Jade, snake plant, echeveria and the string-of crowd store their own water — they need a gritty mix that dries out fully.

Gritty mineral mix — cacti & extreme succulents

Desert plants that want a mix that is mostly grit and behaves more like wet gravel than soil.

Orchid bark — epiphytic orchids

Epiphytes whose roots grip bark in open air. They are grown in coarse bark, never in potting soil.

Bromeliad / epiphytic mix

Tank bromeliads drink through the central cup, not the roots. They want a light, open bark mix in a shallow pot.

No soil at all — air plants & mounted epiphytes

These feed through their leaves and are never planted in soil. The "mix" is a mount and good airflow.

Acidic / ericaceous mix

True acid-lovers that physically cannot take up iron above about pH 5.5 — an ericaceous mix is survival, not preference.

Lean Mediterranean mix — rosemary, lavender, thyme

Dry-hillside herbs that want a lean, sharply drained, slightly alkaline mix and rot fast in rich, wet soil.

Rich vegetable & herb loam

Hungry, fast crops and tender herbs that want a rich, moisture-retentive but free-draining, well-fed loam.

Best soil for tomato

Solanum lycopersicum

Rich, well-drained loam

Best soil for pepper

Capsicum annuum

Rich, well-drained loam

Best soil for basil

Ocimum basilicum

Rich free-draining potting compost or garden loam

Best soil for cucumber

Cucumis sativus

Rich, well-drained loam

Best soil for bean

Phaseolus vulgaris

Average garden loam

Best soil for garlic

Allium sativum

Free-draining loam, raised bed ideal

Best soil for pea

Pisum sativum

Free-draining loam

Best soil for squash

Cucurbita pepo

Rich, well-drained loam

Best soil for carrot

Daucus carota

Loose, sandy or sandy-loam soil, stone-free

Best soil for herb garden

mixed culinary herbs

Free-draining mix

Best soil for strawberries

Fragaria × ananassa

Rich, well-drained loam

Best soil for raspberries

Rubus idaeus

Rich, well-drained loam

Best soil for cilantro / coriander

Coriandrum sativum

Rich, well-drained loam

Best soil for zucchini / courgette

Cucurbita pepo

Rich, well-drained loam

Best soil for onions

Allium cepa

Rich, well-drained loam

Best soil for spinach

Spinacia oleracea

Rich, well-drained loam

Best soil for kale

Brassica oleracea var. sabellica

Rich, well-drained loam

Best soil for cabbage

Brassica oleracea var. capitata

Rich, well-drained loam

Best soil for broccoli

Brassica oleracea var. italica

Rich, well-drained loam

Best soil for radish

Raphanus sativus

Loose, well-drained loam

Best soil for potato

Solanum tuberosum

Rich, well-drained loam

Best soil for lemon tree

Citrus limon

Free-draining slightly acidic loam

Best soil for avocado

Persea americana

Free-draining slightly acidic loam

Best soil for pumpkin

Cucurbita pepo

Rich well-drained loam

Best soil for butternut squash

Cucurbita moschata

Rich well-drained loam

Best soil for acorn squash

Cucurbita pepo

Rich well-drained loam

Best soil for spaghetti squash

Cucurbita pepo

Rich well-drained loam

Best soil for delicata squash

Cucurbita pepo

Rich well-drained loam

Best soil for eggplant / aubergine

Solanum melongena

Rich well-drained loam

Best soil for okra

Abelmoschus esculentus

Rich well-drained loam

Best soil for sweet potato

Ipomoea batatas

Sandy free-draining loam

Best soil for bell pepper

Capsicum annuum

Rich well-drained loam

Best soil for jalapeño

Capsicum annuum

Rich well-drained loam

Best soil for habanero

Capsicum chinense

Rich well-drained loam

Best soil for corn

Zea mays

Rich well-drained loam

Best soil for pole beans

Phaseolus vulgaris

Free-draining loam

Best soil for lima beans

Phaseolus lunatus

Free-draining loam

Best soil for snap peas

Pisum sativum

Free-draining loam

Best soil for snow peas

Pisum sativum

Free-draining loam

Best soil for watermelon

Citrullus lanatus

Sandy free-draining loam

Best soil for cantaloupe

Cucumis melo

Rich well-drained loam

Best soil for honeydew melon

Cucumis melo

Rich well-drained loam

Best soil for asparagus

Asparagus officinalis

Free-draining sandy loam

Best soil for rhubarb

Rheum rhabarbarum

Rich free-draining loam

Best soil for swiss chard

Beta vulgaris subsp. cicla

Rich well-drained loam

Best soil for beet

Beta vulgaris

Free-draining sandy loam

Best soil for turnip

Brassica rapa

Free-draining sandy loam

Best soil for parsnip

Pastinaca sativa

Deep free-draining sandy loam

Best soil for brussels sprouts

Brassica oleracea var. gemmifera

Firm rich loam

Best soil for cauliflower

Brassica oleracea var. botrytis

Rich firm loam

Best soil for fennel

Foeniculum vulgare

Rich free-draining loam

Best soil for arugula / rocket

Eruca sativa

Rich free-draining loam

Best soil for dill

Anethum graveolens

Free-draining loam

Best soil for chives

Allium schoenoprasum

Rich free-draining loam

Best soil for french tarragon

Artemisia dracunculus

Free-draining sandy loam

Best soil for lemon balm

Melissa officinalis

Free-draining loam

Best soil for catnip

Nepeta cataria

Free-draining loam

Best soil for lemon verbena

Aloysia citrodora

Rich free-draining loam

Best soil for lemongrass

Cymbopogon citratus

Rich free-draining loam

Best soil for stevia

Stevia rebaudiana

Rich free-draining loam

Best soil for bay laurel

Laurus nobilis

Free-draining loam

Best soil for fenugreek

Trigonella foenum-graecum

Free-draining loam

Best soil for wormwood

Artemisia absinthium

Free-draining loam

Best soil for anise hyssop

Agastache foeniculum

Free-draining loam

Rich flowering loam

Roses, dahlias, peonies and border perennials. Rich enough to fuel the display, open enough to never waterlog.

Best soil for peace lily

Spathiphyllum wallisii

Standard potting compost with added perlite

Best soil for bird of paradise

Strelitzia reginae

Rich, well-drained loam

Best soil for hoya

Hoya carnosa

Chunky free-draining mix

Best soil for chamomile

Matricaria chamomilla

Free-draining loam

Best soil for rose

Rosa

Rich, well-drained loam

Best soil for tulip

Tulipa

Free-draining loam

Best soil for daffodil

Narcissus

Free-draining loam

Best soil for hibiscus

Hibiscus rosa-sinensis

Rich, well-drained loam

Best soil for geranium (pelargonium)

Pelargonium × hortorum

Free-draining potting compost

Best soil for petunia

Petunia × hybrida

Rich, well-drained potting compost

Best soil for marigold

Tagetes

Free-draining loam

Best soil for zinnia

Zinnia elegans

Rich, well-drained loam

Best soil for dahlia

Dahlia pinnata

Rich, well-drained loam

Best soil for peony

Paeonia

Rich, well-drained loam

Best soil for sunflower

Helianthus annuus

Rich, well-drained loam

Best soil for clivia

Clivia miniata

Free-draining loam-based mix

Best soil for coleus

Coleus scutellarioides

Rich free-draining mix

Best soil for false shamrock

Oxalis triangularis

Free-draining mix

Best soil for iris

Iris germanica

Free-draining alkaline loam

Best soil for crocus

Crocus vernus

Free-draining sandy loam

Best soil for hyacinth

Hyacinthus orientalis

Free-draining loam

Best soil for lily of the valley

Convallaria majalis

Rich woodland loam

Best soil for snapdragon

Antirrhinum majus

Free-draining loam

Best soil for pansy

Viola × wittrockiana

Rich free-draining loam

Best soil for impatiens

Impatiens walleriana

Rich free-draining loam

Best soil for flowering coleus

Plectranthus scutellarioides

Rich free-draining loam

Best soil for nasturtium

Tropaeolum majus

Free-draining loam

Best soil for cosmos

Cosmos bipinnatus

Free-draining loam

Best soil for salvia

Salvia splendens

Free-draining loam

Best soil for lupine

Lupinus polyphyllus

Free-draining sandy loam

Best soil for forget-me-not

Myosotis sylvatica

Rich free-draining loam

Best soil for sweet pea

Lathyrus odoratus

Rich free-draining loam

Best soil for hellebore

Helleborus orientalis

Rich free-draining loam

Best soil for primrose

Primula vulgaris

Rich free-draining loam

Got the mix right? Now nail the watering.

The mix you choose changes how fast the pot dries. Add your plant to the Growli app and I'll learn your exact pot, light and weather and tell you the day to water — not a guess. Or get the full brief at /plant-care.

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