Questions about when, where and how much to water plants, about techniques for watering and about the equipment gardeners use to deliver water to their plants.

learn more… | top users | synonyms (1)

11
votes
1answer
4k views

Which plants/trees will benefit from using urine as a fertilizer?

We know that urine can do a plant good. Certain plants (like citrus trees) will absolutely do well if you add urine to their intake. But urine is very high in nitrogen and could potentially "burn" ...
21
votes
3answers
13k views

How to prevent avocado from drying out indoors?

I have an avocado plant that has grown indoors since it was a pit. It grew first in a badly insulated, north-facing, wet and cool house, where it grew splendidly. After i moved to a well insulated ...
2
votes
1answer
36 views

Want to set up a timed watering system for 'remote' garden patches without utilizing underground water hoses

I would like to set up a timer-based watering system for my mother's garden (see figure below). I plan to have the timer installed on the main water supply line, which then branches via underground ...
1
vote
0answers
21 views

Curious to know why over-watering leads to root-rot yet the same plant can be grown in water? [duplicate]

I bought a few pothos plants from home depot last summer, and from my investigation, it seemed they all died from root rot. I tried every thing I could to save them but they just would not stop. But ...
11
votes
1answer
4k views

Is my Schefflera arboricola getting the right amount of light and water?

I have a Schefflera arboricola (also known as Strahlenaralie in German). I've placed it in my office so that it receives some sunshine, but not directly - I've put it behind a plastic plant (on the ...
2
votes
1answer
73 views

What happened to my Mass Cane?

Not putting in much thought I moved my plants closer to a light source over the weekend and as you can see in the pictures some tips turned black. Did it get burned? Is it dying? What am I supposed ...
6
votes
1answer
57 views

Are aquarium-water nematodes harmful to plants?

I water my houseplants and potted patio plants with the water drained from my aquarium filter as part of its routine maintenance. The canister filter is full of fish waste and nitrates that would ...
15
votes
4answers
3k views

Does water temperature affect vegetable plant growth?

Generally speaking, when watering a vegetable garden, are there any benefits to using cold water vs warm or vice versa? I'm in Wisconsin, so 90+°F is about as hot as it gets around here. Typically ...
2
votes
2answers
61 views

Which of these palms would be easier to take care of in an indoor 9" pot?

I'm looking to buy a new palm to keep indoors in a 9-10 pot. I've narrowed my selection down to two palms, I'm wondering which would be easier to take care of between the 2 plants: Cateracterum ...
18
votes
6answers
9k views

Is rain water better than tap water for plants?

Is it better to water your plants with rain water collected in water butts? I mean is that better than water straight from the tap? And is it just a matter of temperature (presumably plants don't ...
2
votes
1answer
36 views

Night-Blooming Jasmine plant continues to wilt even after treating with baking soda-water spray

I recently purchased some night-blooming jasmine plants. After a week the plants are wilting. I transferred them to new pots with different soil but no improvement noticed. I also sprayed numerous ...
6
votes
5answers
100 views

Bonsai shedding leaves 1 week after purchase

I bought the below bonsai tree from Home Depot as a Xmas gift for a friend. I haven't even given the gift yet and the leaves are already starting to fall out en masse. I have the tree indoors in ...
2
votes
2answers
59 views

Why are the leaves of my rubber plants getting wavy?

I just got a young rubber plant (I think thats what it is). After the second watering I realized the plants leaves were getting wavy or ridged. If it matters, I waited till the mix was dry before ...
4
votes
2answers
43 views

What is best watering schedule for a bonsai juniper tree?

I am new to bonsai and I have had two juniper bonsai trees so far. The first one dried out even though I watered it weekly. The second one I am keeping pretty well moist but I am afraid of drowning ...
2
votes
1answer
69 views

Why is my philodendron getting these brown dry parts on its leaves?

Why is my philodendron getting these brown dry parts on its leaves? You can see in the attached photo where it is starting to get brown (bottom left). In the second photo you can see that almost the ...
5
votes
1answer
2k views

Can my DIY grey water bio filter system be improved?

I have just finished building a grey water biological filter and would love to hear the different ideas and concepts others might have. I know there are other concepts that can be added such as a ...
5
votes
1answer
62 views

Why is my Majesty palm getting dried out, when the soil is moist and I'm misting the foliage daily?

I recently repotted my Majesty palm and pruned the fronds that were damaged in the past. It all looked really nice and fresh, and I've been misting it every morning. However, I lately realized that ...
9
votes
3answers
145 views

What plants can I use to reduce soil humidity?

I live in Chile where the land slopes up into the hills just a few meters from the coast. I have a garage at sea level with the back wall in the ground and there's a little river flowing inside it. I ...
1
vote
2answers
48 views

Should I water my houseplants before or after spraying for spider mites?

Is it better to water my houseplants before or after spraying bayer products to control spider mites?
4
votes
2answers
50 views

How can I check quality of sprinkler blowouts?

We just had our sprinklers blown out, and are starting to suspect the quality of the work we got. Within 5 minutes of discovering that we had a blowout scheduled, our fee was charged and the guy ...
15
votes
3answers
246 views

Is a little watering still better than no watering, when plants are thirsty?

I understand that it's important to water sufficiently and not just dampen the surface. But does it actually do damage to water very briefly, or is it better than nothing? I'm thinking about a ...
1
vote
1answer
53 views

Is a potted grapevine better put under or outside a roof?

My two potted grapevines and I just moved to a new apartment with a roof terrace. The terrace has an acrylic glass roof with metal pillars and I want the vine to grow up the pillars and along/under ...
3
votes
2answers
81 views

What is the name of this houseplant, and how can I prevent it from drying out?

One of my friends gave me this plant as present about two weeks ago. Now it`s starting to dry out, while retaining green leaves (without yellowing). At first I watered it every day, but now water it ...
4
votes
0answers
51 views

How much should I water an avocado plant guided by a moisture meter?

I have a moisture meter that registers readings from 0.0 to 9.9 (driest to wettest). I cannot find a listing for a potted avocado tree. Can you give me info as to what percentage is optimal for the ...
4
votes
2answers
104 views

How much water does lucky bamboo need?

I was recently given some decorative "lucky bamboo". It came with four shoots approximately 6-8 inches tall and 1/4' thick. They sit in a glass jar with a diameter of 4' and a height of 6'. The jar ...
5
votes
1answer
317 views

Cedar Hedge drying from the inside

We planted a cedar hedge this spring (4 months or so ago). The trees were fine this summer, some of them had one or two dried branches; nothing out of ordinary. At the end of the summer, some trees ...
3
votes
1answer
252 views

How much water should I give a mung bean each day?

I have a mung bean plant I'm growing in my home that's about 10 centimeters tall now. How much water should I be giving the plant each day in order for it to grow? I would like to know the amount in ...
4
votes
3answers
351 views

Can I use tap water as an alternative to rain water on my Venus fly trap?

Can I leave tap water to stand outside in order for the fluorine and other baddies in tap water to evaporate? Could I boil it for the same result?
5
votes
1answer
279 views

What unclean water can I give to my plants?

Since water is scarce here, I would like to water my pots with used water. I guess that it is not a good idea to use water with soap, but what about water with food remnants? For example, I washed the ...
3
votes
1answer
80 views

Is the moisture sensor reading correct in my self-watering vase?

I have an hydrangea in a «self watering» vase (a Lechuza Cube) and I use a Parrot Flower Power to monitor soil moisture. The soil moisture level sensor stays constant (17%-18%), watering the vase ...
5
votes
2answers
216 views

What are some heat tolerant nutritious greens I could plant for a tortoise?

I've recently posted a question about raising a few leafy greens, and turns out quite a few favor cold temperatures and will turn sour (bolt?) when exposed to heat. Our temperatures here should vary ...
3
votes
1answer
51 views

What are the basic directions to planting leafy greens?

I'm planning to plant some leafy greens for a tortoise I'm going to get soon. I want the basic directions for planting and caring for the greens provided I have attained the seeds. The greens I'm ...
3
votes
1answer
90 views

Drip Irrigation for Row of Long Arborvitae Hedge

Both sides of our property have newly planted 6 foot arborvitaes planted. One side has about 55 and the other side has about 25 all spaced 2.5 feet from center in straight lines in a 5 foot wide bed ...
4
votes
1answer
440 views

Why do the leaves of my avocado tree have brown edges and spots?

I have inherited an avocado tree in a hot, arid climate in a very windy spot. It has been watered well, but its leaves look like something is wrong with it - they have brown edges. Perhaps it's ...
7
votes
4answers
1k views

Is it okay to use left-over pasta water to water plants, including edibles?

We are having a drought in California, so I'm just wondering if I could reuse salted pasta water (after it cools) to keep the plants hydrated. Is this a good idea?
4
votes
3answers
254 views

Negative effects of water pooling in garden

This year I ripped up some sod to put in a garden, and roto-tilled the dirt. We live in a very nutrient rich area of the country and the plants seem do be doing very well. However I didn't add any ...
2
votes
3answers
181 views

How do I water a desk plant without making a mess?

I have decided to get a few plants for my office desk. However, one thing still eludes me. Plant pots usually have a drainage hole to allow excess water to escape. If I keep the plant on my desk, how ...
2
votes
1answer
86 views

Why aren't my potted herbs healthy, and water runs dark out of the parsley container?

I am growing spearmint and flat-leaved parsley in two 10” round containers. I water the plants a couple of times a week, and every 2 weeks or so water them thoroughly until the water drains out the ...
6
votes
1answer
252 views

What is a perched water table?

In gardening, especially container gardening, you will run into the phenomenon called a 'perched water table' (PWT). What is a perched water table, and how does it work?
1
vote
0answers
38 views

How do you water your plants when your house as a water softner? [closed]

I recently turned on my water softner to get soft water inside the house. The water softner is in the garage, which is in the front of the house. The adjacent wall in the front of the house has two ...
6
votes
2answers
332 views

What features should I look for in a low pressure water timer?

I harvest rainwater in a four hundred liter ( 90 US Gallon) container that has a drop of about a foot to where I want to add the water. It would save me some time if I could program a timer to turn on ...
2
votes
1answer
58 views

Why are my hydrangea flowers dying, but the leaves look OK?

I bought some Hydrangeas in pots in full flower. They were then left un-watered. They are now suffering from dead flowers but the leaves look OK. It is now August in North Yorkshire. Any ideas what I ...
8
votes
4answers
842 views

How do I pump my bath water to my garden for watering?

After my kids have a bath, I want to be able to pump the water out into the garden. They usually just have a bath in water without soap etc. so it's still relatively clean. Usually I just try to ...
8
votes
1answer
209 views

Is rust from steel rainwater barrel harmful?

We are using a used steel drum barrel as a rainwater container. Someone else in our house brought it from work, and we haven't bothered replacing with a plastic one yet. Supposing that there is no ...
3
votes
1answer
203 views

What could cause brown spots on the leaves of a Song of India plant (Dracaena reflexa)?

As you can see in these pictures our Song of India (Dracaena reflexa) is having some problems. I say it is too much water, while my wife says not. What do you say? Click any photo for full size
19
votes
5answers
4k views

Does eating fruits and vegetables watered with greywater affect your health?

Does using greywater on your fruit and vegetable garden affect your health in a negative way? Greywater is the run-off or cast off water that lolls about when you do normal washing around the home. ...
8
votes
2answers
224 views

What's a good water system for my cactus plant during holidays?

I have a very resilient cactus that can be left alone for a month without consequences. Now, I want to leave it alone during two months and leave it some water system. I have seen little earthen ...
4
votes
1answer
110 views

Will I run into trouble if I water houseplants with carbonated water?

I have rather a lot of partially flat liters, and wonder if I could use it as a drink for my house plants. Will purified carbonated water harm plants?
1
vote
1answer
74 views

What is this small grass plant?

Got it as a gift, and was told to water it every two days. Seems a little frequent to me, what plant is this?
2
votes
1answer
54 views

Extending Life of Cut Flowers

I was reading this article on Extending the Life of Cut Flowers and had a couple of questions. As was also pointed out on How to keep my roses fresh?, you should cut the stems at an angle under ...