Soil & potting mix
Best soil for Striped Goldfish Plant (Nematanthus strigillosus)
Also called Striped Goldfish Plant, Downy-leaf Goldfish Plant, Goldfish Plant.
More about striped goldfish plant
About Striped Goldfish Plant
Nematanthus strigillosus · also called Striped Goldfish Plant, Downy-leaf Goldfish Plant · tropical
Nematanthus strigillosus is a trailing epiphytic gesneriad endemic to Brazil's Atlantic Forest, distinguished from other goldfish plants by its softly hairy (strigose) elliptic leaves and vibrant orange-red tubular flowers produced from spring through autumn. It grows as a hanging-basket specimen in most climates, with stems that can reach 90 cm if left unpinched. Keep it in bright indirect light and allow the top layer of compost to dry slightly between waterings to keep it blooming freely. According to the ASPCA, Nematanthus spp. is non-toxic to cats and dogs.
Preferred mix: Well-drained, humus-rich mix
Why striped goldfish plant needs this mix
Striped Goldfish Plant is an easy-going houseplant — it just wants a free-draining general mix that holds some moisture but never stays soggy.
- Striped Goldfish Plant is adaptable, but like most houseplants it still needs air at the roots — a mix that drains freely while holding a working moisture reserve.
- A little perlite or bark stops ordinary compost compacting into an airless block over time, which is the slow, common cause of decline.
- It is not fussy about pH or special ingredients; getting the air-to-moisture balance right is what matters.
For the full picture on what makes up a good mix, see our guide to the main types of soil and potting media — it explains why each ingredient above behaves the way it does.
What goes wrong with the wrong mix
The wrong soil is one of the most common reasons striped goldfish plant struggles, and the damage often shows up weeks later as a watering problem. For this species specifically:
- Plain garden soil or a cheap, claggy compost compacts in the pot and slowly suffocates striped goldfish plant's roots.
- A pure peat mix that dries to a hard, water-repelling block is hard to re-wet and stresses the plant.
- No drainage hole turns even a good mix into a stagnant, root-rotting sump.
Reusing tired, compacted old compost or skipping the perlite. A free-draining mix in a pot with a hole solves most "why is it struggling" cases for striped goldfish plant.
pH — does it matter for striped goldfish plant?
Striped Goldfish Plant is not fussy about pH — a slightly acidic to neutral mix (around pH 6.0-7.0), which a standard peat-free compost provides, is perfectly fine. No testing needed.
If you want to check or adjust it, the soil pH guide walks through testing and the safe ways to nudge a mix more acidic or more alkaline.
DIY mix vs a bagged one
A decent bagged houseplant compost works for striped goldfish plant as long as you mix in perlite for air. The simple DIY ratio above is cheap and more reliable than a budget bag alone.
Drainage and the pot
A pot with a drainage hole and a saucer you empty after watering is all striped goldfish plant needs — the free-draining mix does the rest.
Refresh striped goldfish plant's mix every 18-24 months; even good compost slumps and compacts, and fresh, airy mix is often the simplest fix for a tired plant. When the time comes, our repotting guide for striped goldfish plant covers the timing and technique step by step.
Striped Goldfish Plant soil — frequently asked questions
What is the best soil mix for striped goldfish plant?
3 parts peat-free houseplant compost : 1 part perlite : 1 part orchid bark or coco chips (optional). Striped Goldfish Plant is adaptable, but like most houseplants it still needs air at the roots — a mix that drains freely while holding a working moisture reserve.
Can I use normal potting soil for striped goldfish plant?
Plain garden soil or a cheap, claggy compost compacts in the pot and slowly suffocates striped goldfish plant's roots. A decent bagged houseplant compost works for striped goldfish plant as long as you mix in perlite for air. The simple DIY ratio above is cheap and more reliable than a budget bag alone.
Does striped goldfish plant need a special pH?
Striped Goldfish Plant is not fussy about pH — a slightly acidic to neutral mix (around pH 6.0-7.0), which a standard peat-free compost provides, is perfectly fine. No testing needed.
Should I buy a bagged mix or make my own for striped goldfish plant?
A decent bagged houseplant compost works for striped goldfish plant as long as you mix in perlite for air. The simple DIY ratio above is cheap and more reliable than a budget bag alone.
How often should I refresh the soil for striped goldfish plant?
Refresh striped goldfish plant's mix every 18-24 months; even good compost slumps and compacts, and fresh, airy mix is often the simplest fix for a tired plant. A pot with a drainage hole and a saucer you empty after watering is all striped goldfish plant needs — the free-draining mix does the rest.
Keep reading
- Striped Goldfish Plant care — the full brief (light, water, humidity, problems, pet safety)
- How often to water striped goldfish plant — the schedule the mix feeds into
- Repotting striped goldfish plant — when and how to refresh the mix
- Soil pH guide — test it and adjust it safely
- Should I water my plant? The simple check first
- Overwatered plant — signs and recovery
- Root rot — how the wrong soil starts it, and how to save the plant
- Best soil for giant ixora
- Best soil for case's ixora
- Best soil for lobb's ixora
- All 10153 soil and potting-mix guides in the Growli library