Post new message
No registration required to post messages & replies.
To track to your Messages you'll need to register.
Username
Email
Password
Enter your email and password in the fields above then click here to Sign In.
Annuals/Perennials
Australian Natives
Bonsai
Bromeliads
Bulbs/Corms/Tubers
Cactii/Succulents
Climbers/Creepers
Ferns/Palms/Cycads
Fruit & Nuts
Garden Environment
Garden Shop Products
Handy Hints
Hedge
Hedges
Herbs
Landscaping
Lawns/Groundcovers
Orchids
Organic
Pest & Diseases
Pests
Plant health
Pots, Planters & Tubs
Propagation
Roses
Seeds
Shrubs - native
Shrubs - non native
Soil
Tools & Machinery
Trees - native
Trees - non native
Vegetables
Veggie Pests
Water Gardens
Weeding
What is this?
Weeds
Flowers
General
Groundcover
Shade plants
Sick plants
A mystery - what is this?
Cosmos not blooming
Dahlia imperialis
Dahlias
Does anyone know what variety of lavender this is?
Flowering Tobacco - poisonous?
Hippeastrum cultivar identification
is tobacco flower really poisonous? or not?
Lavatera Insect Damage
Legal? Oriental Poppies
Lobelia Companion
Russel Lupins
Samantha
Streptocarpus
sunflowers
What plant is this?
White flower - what is this?
Why are my Zinnia seedlings have gone crispy on the leaves?
Why has my hibiscus stopped flowering?
Annuals/Perennials > Flowers
After about a month and a half, my cosmos are huge but don't have any blossoms. I read that they don't bloom in over fertilised soil. Is there any way to 'UN-fertilise' my soil?
Yes that is correct. Cosmos will not flower in over fertile soil. My feeling is that your nitrate levels are too high. It may be a good idea to try to take them out and plant something else in that spot. Alternatively after you have taken them out you could try mixing a quantity of washed river sand thru the soil in equal parts. 1 part soil to 1 part sand. This will change the existing structure of the soil and lower the available nutrients.
© 2010-2024 GardensOnline Shopping Pty. Ltd.
The following error found:
Close