GrowPharm Cactus Master 1-2-5 – Cactus & Succulent Fertilizer

Cactus Master is a low-nitrogen, potassium-rich liquid fertilizer made specifically for cacti, succulents, and other drought-adapted plants.

Many general-purpose houseplant fertilizers supply more nitrogen than slow-growing succulents need. Cactus Master uses a 1-2-5 nutrient ratio to provide gentle nitrogen for healthy growth while supplying phosphorus, potassium, magnesium, sulphur, and chelated micronutrients.

The concentrated formula lets you adjust the strength for everything from slow-growing desert cacti to larger, more vigorous succulents.

How to Use

General feeding: Mix 2.5 mL per litre of water and apply every 4–6 weeks during active growth.

Light-feeding cacti and succulents: Use 1 mL/L.

Large, established, or vigorous plants: Use up to 5 mL/L every 4–6 weeks during active growth.

Reduce or discontinue fertilizer when plants are dormant or growth has slowed substantially.

Suitable For

Cactus Master can be used with most commonly grown cacti and succulents, including:

• Aloe

• Echeveria

• Jade plants and other Crassula

• Haworthia and Haworthiopsis

• Gasteria

• Agave

• Sedum

• Kalanchoe

• Euphorbia

• Opuntia

• Mammillaria

• Echinopsis

• Columnar and barrel cacti

Very slow-growing plants such as Lithops, Conophytum, and similar mesembs should be fertilized much more sparingly.

Not recommended for carnivorous plants, including butterworts.

Why 1-2-5?

Cacti and succulents generally do not require the heavy nitrogen feeding used for fast-growing tropical foliage plants. Cactus Master provides a modest amount of nitrogen alongside proportionally more potassium to support healthy, compact growth without unnecessarily pushing soft growth.

The formula also contains magnesium, sulphur, and a complete blend of chelated micronutrients, including iron, manganese, boron, zinc, copper, and molybdenum.

Guaranteed Analysis

1-2-5

Made in Canada.

Size: 125 mL

At the standard 2.5 mL/L rate, one 125 mL bottle makes approximately 50 litres of fertilizer solution.