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Monstera Root Supplement

Root Supplement for monsteras with sea kelp, soil probiotics, and plant-based surfactants — made to build the root system behind big, well-split new leaves. This is a supplement, not a fertilizer: it works alongside your monstera food, with probiotics improving nutrient uptake and surfactants helping water spread through the whole pot instead of channeling past a dry root ball.

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“I have been using the TPS Monstera Root Supplement as well as the TPS Monstera Plant Food for about a year now with excellent results. Not long after I began using it, it stimulated new growth.”

Anonymous A. · Verified buyer

Works for all indoor plants

Foliage plants

  • Pothos
  • Monstera
  • Philodendron
  • Fiddle leaf fig
  • and more!

Flowering plants

  • Peace lily
  • Anthurium
  • Hibiscus
  • African violet
  • and more!

Low-light plants

  • ZZ plant
  • Snake plant
  • Ferns
  • Dracaena
  • and more!

Results you can see

Feeds foliage for deeper color and a brighter, more lively look.

Feeds foliage for deeper color and a brighter, more lively look.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Supports healthy, resilient roots that absorb nutrients more effectively.

Supports healthy, resilient roots that absorb nutrients more effectively.

What's inside your bottle — macronutrients, core minerals, micronutrients, and natural kelp

How to use

  1. Mix

    Shake Well and Add 1 tsp per quart (32 oz) of water.

  2. Feed

    Water your plants as normal. Spring & summer: every 1–2 weeks. Fall & winter: every 4 weeks.

  3. Grow

    Watch how your plants thrive!

Frequently asked questions

How often should I use root supplement on a monstera?

Add 1 tsp per quart (32 oz) of water and apply every 1-2 weeks in spring and summer, then every 4 weeks in fall and winter. Mix it into your normal watering — no separate routine needed. It's designed to work alongside your monstera fertilizer, so keep your regular feeding schedule and simply add this to the rotation.

How long will one bottle last?

At 1 tsp per quart, the 8 oz bottle makes about 48 watering cans of feed. For a typical shelf of 10–15 plants fed every 1–2 weeks in season, that's several months of feeding — and the 32 oz bottle four times that.

What should I do with my monstera's aerial roots?

You have options: leave them, train them onto a moss pole, or redirect them back into the soil — where they'll take up water and nutrients like regular roots. Redirecting them into the pot means they benefit from watering and this supplement too. Don't cut healthy aerial roots off; they're part of how a climbing monstera supports bigger leaves as it matures.

Why are my monstera's new leaves small with no splits?

Splits (fenestrations) come with maturity, light, and support — a young plant won't split no matter what you feed it, and low light keeps leaves small at any age. Bright indirect light and something to climb matter most. Where roots come in: each new leaf draws on root capacity, so a stronger root system supports the size progression once light and maturity are there.

Is this a fertilizer? Do I still need monstera food?

It's a supplement, not a fertilizer — there's no NPK in it. Kelp, probiotics, surfactants, and fulvic acid build root health and improve how well roots absorb water and nutrients, but the plant still needs actual nutrition from a fertilizer. The two work together: this makes the root system better at using what your monstera food delivers.

Can I use this on monstera cuttings and propagations?

Yes — freshly potted propagations are the classic use case. Once a cutting has roots and goes into soil, it's running on a small, new root system, and how fast that establishes determines how fast the plant takes off. Start the supplement with your first regular watering. For cuttings still in water, wait until they're potted in soil, since the probiotics are a soil blend.

When will I see results?

Root progress shows above the soil on a delay. Within 2-4 weeks of regular use, expect a plant that holds steady and resumes pushing growth rather than sulking. New leaves reflect it next: in the growing season, a healthy monstera unfurls a new leaf every 4-6 weeks, and stronger roots show up as steadier production and better size progression leaf over leaf.

Let's Start Growing!

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Monstera Root Supplement $11.99