Definition of undergrowth for Students. : low growth on the floor of a forest that includes shrubs, herbs, and saplings.
From Organic Gardening Magazine, July/August 2000 Issue. Miracle-Gro is a synthetic fertilizer that contains ammonium phosphate and several other chemicals that can be toxic to your soil and plants. It is prohibited from use in certified-organic farming.
Miracle-Gro Indoor Plant Food Spikes and Miracle-Gro Orchid Plant Food Spikes are for houseplants. Miracle-Gro Tree & Shrub Fertilizer Spikes, Miracle-Gro Evergreen Fertilizer Spikes and Miracle-Gro Fruit & Citrus Tree Spikes are mainly for use outdoors. Each has a different blend of ingredients designed to feed specific kinds of plants.