Ask a Question forum→Repotting and fertilizer

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Name: Sophie
Montreal Canada (Zone 5b)
Sophiesaurus
May 26, 2020 8:02 PM CST
I have many plants which I'll list below.

How do I know when it's time to repot them?

Do I need to give them fertilizer or can they survive and be happy without it?


Monstera deliciosa, bird of paradise, echeveria, string of pearls, cacti, aloe, Purple Hearts, ivy, gasteria, Haworthia, geranium, lemon geranium, monstera adasonii, anthurium, jade, fern, African violet, pothos, snake plant, pilea...
Name: Baja
Baja California (Zone 11b)
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Baja_Costero
May 26, 2020 8:50 PM CST
I can only speak for the succulents, but the pot size should roughly match the roots. When the roots completely fill the pot, you might think about a bigger one, depending on whether the plant has the potential to get bigger. I can advise on specific succulents if you want to share pictures. They do not need fertilizer if the soil is relatively fresh (like 2 years old or less).
Name: Lynda Horn
Arkansas (Zone 7b)
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gardenfish
May 27, 2020 1:40 AM CST
I agree With Baja...,and for the rest of the plants I would add this, according to Will, disturb the roots as little as possible, don't put dirt on top of the original root ball, put the plant at the level it was before in the new pot, make sure the new pot has good drainage, and don't use too large a pot. I would say that African violets can live happily for many years in a small pot. They don't mind. I've had my current one for two years and haven't repotted it. You probably shouldn't fertilize a newly repotted plant. Just more stress.
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Name: Will Creed
NYC
Prof. plant consultant & educator
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WillC
May 27, 2020 8:29 AM CST
My rule of thumb for repotting is that if a plant dries out enough to need water again within three days after a thorough watering, then it may be a candidate for repotting into a pot one size larger. Premature repotting is the single most common cause of plant problems, so if in doubt it is probably better to wait. Some plants may never need repotting, especially those in low light that are growing slowly.

Fertilizer is vastly overrated as indoor potted plants use nutrients in very minute quantities. If a plant has not been repotted recently and it is healthy and growing vigorously, then you can fertilize at half-strength monthly. Otherwise, skip it.
Will Creed
Horticultural Help, NYC
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Name: Sophie
Montreal Canada (Zone 5b)
Sophiesaurus
Jun 13, 2020 9:22 PM CST
Thank you all so much for this invaluable advice!
I water my anthurium once per week and the water runs right through to the dish... it looks happy and healthy but would this indicate that it needs to be repotted?

Thank you!

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Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
Jun 13, 2020 9:26 PM CST
If it ain't broke, don't fix it. Smiling
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Name: Lynda Horn
Arkansas (Zone 7b)
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gardenfish
Jun 14, 2020 12:26 AM CST
It sure looks healthy and happy to me. Very pretty plant!
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Mother Teresa
Name: Will Creed
NYC
Prof. plant consultant & educator
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WillC
Jun 14, 2020 8:29 AM CST
Water running through as you described can occur normally if your Anthurium is potted in a very porous epiphytic potting mix.

However, If yours is potted in a standard potting mix, then if the water runs through it may be because the soil is still saturated after a week and that could be a problem.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at [email protected]
I now have a book available on indoor plant care
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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DaisyI
Jun 14, 2020 10:05 AM CST
I don't think Sophie's Anthurium has any problems.

My Anthurium literally sits in a saucer of water and it doesn't have a problem either.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Webmaster: osnnv.org
Name: Sophie
Montreal Canada (Zone 5b)
Sophiesaurus
Jun 17, 2020 9:00 PM CST
One of the flowers is dying, is that cause for concern?
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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DaisyI
Jun 17, 2020 10:13 PM CST
Flowers don't last frever. How do the leaves look?
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Webmaster: osnnv.org
Name: Sophie
Montreal Canada (Zone 5b)
Sophiesaurus
Jun 18, 2020 12:29 PM CST
The leaves look good and there are new growths
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
Jun 18, 2020 12:32 PM CST
Thumbs up
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Webmaster: osnnv.org

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