The Best Soil for Pothos to Prevent Root Rot and Promote Lush Growth

Few plants are as forgiving as pothos. This low-maintenance houseplant flourishes in rooms with low light and can withstand minimal watering. But if you want to keep your pothos plant lush and green for years to come, you'll want to provide it with ideal growing conditions—and that starts with choosing the right soil. Because pothos is a tropical plant, it does best in soil that mimics its native habitat. Ahead, gardening experts share their tips for achieving optimal soil conditions for your pothos plant.

Natural Habitat of Pothos

Pothos is a genus of flowering tropical plants originating in Southeast Asia, Indonesia, and the Solomon Islands. In its native habitat, pothos is found as a ground cover in rainforests where it winds its way up surrounding trees. "In tropical rainforests, pothos grow well in organic-rich, loose, well-draining soils," says Linda Langelo, horticulture specialist at Colorado State University. "The soil in the rainforest contains a high percentage of decaying matter."

Key Characteristics of Ideal Pothos Soil

Due to their natural habitat, pothos plants typically thrive in nutrient-rich, well-draining soil with good aeration and moderate moisture retention. These plants also prefer a neutral to slightly acidic potting soil with a pH range of 6 to 7. Justin Hancock, horticulturist at Costa Farms, recommends using a general-purpose potting mix. "Although potting mixes rarely contain soil, they do have a very high organic matter content, so there’s good water-holding capacity, and it doesn’t dry out right away, but also has good aeration so the roots don’t suffocate," he says.

A well-aerated potting soil is essential for healthy roots and protecting pothos from overwatering. "Some of the best ingredients for adding aeration to a potting mix include perlite, bark, and sand, as well as less-commonly used ingredients like coconut husk chips and horticultural charcoal," says Hancock. If your pothos starts to wilt or yellow, it is typically a sign that the soil is not well-drained, Langelo notes.

How Water Plays a Role

Your watering habits may determine the type of potting soil you use. "Potting mix essentially acts as a sponge, holding moisture for plant roots to absorb. Because holding moisture is a key part of its role, how you water has an important relationship to the potting mix," says Hancock. "As a general rule, the more you tend to water, the more air space your potting mix will need." If you water your plants consistently, a general-purpose potting mix works well. However, if you tend to overwater, Hancock recommends a mix with a chunkier texture and larger air spaces.

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Best Soil Mix Recipes for Pothos

Pothos plants require well-aerated, fast-draining soil that resists compaction while still retaining some moisture. Luckily, there are a few ingredients that can help you achieve this. "Most potting mixes have a base of either peat moss or coir. They’re excellent choices for potting mixes because they have excellent water-holding capacity," says Hancock. "Beyond peat and coir, you may see perlite as an ingredient for more aeration—it’s essentially a popped volcanic rock, so there are lots of little pore spaces in the perlite chunks." Sand is another common ingredient in potting mix, as the small rock particles that make up sand don’t fit together tightly, creating air space. Finally, chunkier mixes typically contain pine bark, which is ideal for creating more air space.

The ideal ratio of these ingredients depends on your watering style. "If you’re an under-waterer, you can grow in a mix that has a much higher proportion of coir or peat," he says. An over-waterer may need a mix with more bark to create larger pockets for water to drain through. Here are some ratios he recommends.

• 2 parts coir, 1 part perlite, 1 part sand
• 1 part coir, 1 part bark, 1 part sand
• 1 part coir, 1 part bark, 1 part perlite
• 2 parts coir, 1 part perlite, 1 part vermiculite