Herself's Houseplants

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Coffee as a fertilizer

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Coffee is high in nitrogen(~2%) which makes it a good fertilizer for plants indoors and out. Used coffee grounds from your coffee pot filter also contain potassium ( >1%), phosphorous (~.3%) and other trace elements.

You can mix some grounds into the dirt when you repot your house plants. Or you can sprinkle some used grounds on the top of the soil of your house plants. Use them sparingly. The nitrogen is released quickly, not over time, and you do not wish to give your house plants fertilizer burn.

Plants that prefer acidic environments especially like to have some coffee grounds added. Also foliage plants ( non-flowering) do very well with coffee grounds.

It is better to let them dry out before adding them to your plants. If they are put on too thick while wet they can mold.

More information:
Coffee grounds for compost and fertilizer
You can make your own fertilizers

Written by Linda MacPhee-Cobb

July 25th, 2007 at 7:00 am

Fertilizer

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You often see ‘fertilize weakly, weekly’. This is way too much fertilizer for house plants.

Fertilize your house plants when you repot them.

Fertilize your house plants once in the spring.

Fertilize them once if they are recuperating from a problem.

If the house plants are potted in dirt a bit of worm castings mixed in the soil is about the best fertilizer you can give a plant.

Most of the soil you buy for your plants already contains enough fertilizer to keep them going until the next repotting.

More information:
Are your plants getting all their nutrients?
Wired Magazine, Full of piss and vinegar ( just kidding — there’s no vinegar ).

Useful things: ( sources for worm castings )Gardens Alive!

Written by Linda MacPhee-Cobb

April 23rd, 2007 at 7:00 am

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