Soil & potting mix
Best soil for Blue Morning Glory (Ipomoea indica)
Also called Ocean Blue Morning Glory, Blue Dawn Flower, Koali Awa.
More about blue morning glory
About Blue Morning Glory
Ipomoea indica · also called Ocean Blue Morning Glory, Blue Dawn Flower · tropical
Ipomoea indica is a fast-growing, twining tropical vine producing abundant vivid blue-to-purple funnel-shaped flowers that open in the morning. It thrives in full sun with warm temperatures and is widely naturalised in frost-free regions. All parts are toxic — seeds contain ergine alkaloids and foliage is harmful to pets.
Preferred mix: Average to moderately fertile, free-draining loam or potting mix
Watch for — Failure to flower: Usually due to too-rich soil or insufficient sun; move to full sun and avoid high-nitrogen feeds.
Why blue morning glory needs this mix
Blue Morning Glory is an easy-going houseplant — it just wants a free-draining general mix that holds some moisture but never stays soggy.
- Blue Morning Glory 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 blue morning glory 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 blue morning glory'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 blue morning glory.
pH — does it matter for blue morning glory?
Blue Morning Glory 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 blue morning glory 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 blue morning glory needs — the free-draining mix does the rest.
Refresh blue morning glory'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 blue morning glory covers the timing and technique step by step.
Blue Morning Glory soil — frequently asked questions
What is the best soil mix for blue morning glory?
3 parts peat-free houseplant compost : 1 part perlite : 1 part orchid bark or coco chips (optional). Blue Morning Glory 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 blue morning glory?
Plain garden soil or a cheap, claggy compost compacts in the pot and slowly suffocates blue morning glory's roots. A decent bagged houseplant compost works for blue morning glory 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 blue morning glory need a special pH?
Blue Morning Glory 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 blue morning glory?
A decent bagged houseplant compost works for blue morning glory 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 blue morning glory?
Refresh blue morning glory'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 blue morning glory needs — the free-draining mix does the rest.
Keep reading
- Blue Morning Glory care — the full brief (light, water, humidity, problems, pet safety)
- How often to water blue morning glory — the schedule the mix feeds into
- Repotting blue morning glory — 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 african mangosteen
- Best soil for kokum
- Best soil for lemon drop mangosteen
- All 11687 soil and potting-mix guides in the Growli library