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42
votes
3answers
25k views

What's an organic way to discourage crabgrass from a large “lawn”?

I have a large area that's infested with crabgrass. I'd like to use organic methods to encourage the grass mix over the crabgrass. The fact that it's a large area means I can't afford to apply (nor ...
27
votes
3answers
2k views

What is this fast growing plant with blue/black berries?

In my garden a strange plant is growing at an incredible speed and I can't identify what kind it is. It broke through end of June and within two months it grew about 1.8-2.0m high. It now carries ...
18
votes
6answers
42k views

Why has our lucky bamboo turned yellow?

Our lucky bamboo has turned yellow in a very short time, after we've had it for almost 2 years. We've trimmed all yellow leaves, and changed the pebble to clean the green algae - what else can be done?...
43
votes
3answers
69k 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 it to a well insulated ...
16
votes
2answers
84k views

Can this peace lily be saved?

We have bought this peace lily plant one or 2 months ago, but suddenly all life seems to have gone out of it. Can we still save it? We watered it once a week, so I don't think that is the issue.
29
votes
4answers
3k views

What are some sustainable alternatives to peat for potting compost?

I've just finished writing the tag wiki for organic and was thinking about wider issues of sustainability. Perhaps the best area where I could improve things personally, would be to use an alternative ...
24
votes
5answers
10k views

How can I get rid of gophers in a non-lethal way?

Gophers or ground squirrels are common pests in North America, that can destroy the fruits of your hard labour. They create extensive underground tunnels and are mostly active at night. A typical ...
17
votes
1answer
13k 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?
22
votes
1answer
57k views

Can I save my damaged Aloe vera plant?

I had an Aloe plant that had grown to about 10" tall, in the shape of a miniature Christmas tree. It was potted in a small 8" pot with two other succulents. Last night our cats broke the plant from ...
9
votes
1answer
8k views

What is 'Etiolation'?

I saw a comment about Etiolation when talking about wintering plants. Etiolation is a big concern also, in warmer temps and short days. I've never seen that word before, it sounds like it's ...
31
votes
1answer
22k views

Can my lawn be saved or is it time to dig it up and re-sod?

The majority of the grass in my backyard has turned brown and/or died after what we believe was a chinch bug onslaught that went untreated for way too long. It is St. Augustine grass in South Florida....
19
votes
2answers
2k views

How and when to plant young grafted fruit tree?

Our backyard is in a Mediterranean climate (Adelaide plains, South Australia) and we've been gifted a young grafted apple tree which has its root ball still wrapped in plastic. It's about 1.3m (4ft) ...
13
votes
4answers
4k views

How do I identify and control spider mites

I am looking for an extensive answer with references that: lists many of the plants that can be attacked by spider mites the conditions that encourage them brief information about their lifecycle how ...
3
votes
0answers
116 views

Please ID succulents and their hardiness zone to survive winter [closed]

I need help please to ID these succulents and their hardiness zone. I'd like to know if they will survive where I live, in zone 5, if left outdoor in the winter while keeping them in their current ...
6
votes
3answers
2k views

What are these white streaks on my tomato plant?

I've also seen similar streaks on my basil's leaves but not as pronounced.
71
votes
7answers
20k views

What are the best conditions for basil?

What are the best conditions for basil to grow? I live in the UK and it never seems to last that long. Recently I've been putting the plants in the shade and drenching them in water, which seems to be ...
64
votes
11answers
112k views

How do I apply spent coffee grounds as a fertilizer?

I've read that spent coffee grounds work well as a fertilizer. But the methods of application are all over the map. Some indicate using it in compost, others suggest spreading it and broken ...
29
votes
2answers
1k views

What are some houseplants that can clean the air, especially chemicals from cigarettes?

I know of the research done by NASA on indoor plants which can clean/reduce certain pollutants in the air. I am very interested in planting such houseplants in my house, as it is sometimes filled with ...
29
votes
3answers
2k views

How should I prune my vine tomatoes?

I've been growing my tomatoes up a 6ft trellis of nylon netting for the last couple of years, with good results. But they tend to grow out of control, eventually toppling over the trellis and ...
34
votes
9answers
7k views

What's the best mulch material for a vegetable garden?

I want to lay mulch down around my already established plants to help retain moisture and discourage weeds. Is there a recommended material for this? Or at least some materials I should know to ...
22
votes
3answers
13k views

Insect infestation on my pepper plant, what do I do?

I have spotted that one - and only one - of my peppers plants has a number of small black flies of some type hanging around the soil. And while writing this I've just spotted that one (and only one!) ...
18
votes
2answers
3k views

How is manure tea made without E. coli?

As the title would suggest, I may or may not have given my kids e. coli by steeping a bag of what I thought was mushroom compost in a 35 gallon drum and watering my garden with it. (I know it was ...
6
votes
1answer
2k views

What is this black spotted disease on my orange tree?

Is this mushroom or animal? I can remove the black dots by slightly scratching the leaves.
18
votes
4answers
4k views

What else besides calcium deficiency could be causing tomato blossom end rot?

I've been using "Tomato Maker" (4-2-6) fertilizer, which supposedly has enough calcium to prevent blossom end rot, but I'm still getting blossom end rot on my super marzano tomatoes (no BER problems ...
10
votes
1answer
12k views

Why are these white dots appearing on my citrus and avocado trees and the leaves getting pale?

My Orange and small avocado trees are becomming yellowish and have many dots on them, is this a deficiency of something or something else? I checked the bottom of the leaves for any sort of plague ...
10
votes
1answer
1k views

How can I keep mockingbirds off potted plants (ornamental peppers)?

I have a rectangular pot on the deck full of ornamental peppers ('Poinsettia' and Chile Pequin "bird peppers"). As is typical of ornamental peppers, they're about a foot high and covered with small ...
5
votes
2answers
1k views

How do I make the water reach the roots on a PVC aquaponics system?

I'm trying to build an aquaponics system with PVC. I have 3" pots on 3.5" tube. When I was done with the drilling and positioning I noticed that the water just rushed below the pots, not touching them....
34
votes
7answers
184k views

Are household LED bulbs suitable as supplemental light for plants?

I live at a fairly northerly latitude where we have limited hours of daylight during the winter. Low-wattage (5-8W) white LED bulbs seem to be becoming more common as a household light source. Do ...
26
votes
3answers
4k views

What vegetables will grow well in limited sunlight?

Our backyard receives limited sunlight due to three massive trees in a small area. There is only about 2 hours of direct sunlight per day to my vegetable patch. Could I get some suggestions for ...
29
votes
7answers
105k views

What are these hard white/brown spots growing on my houseplant?

A little more then an year ago I got six palm trees (two vases). It was the Californian equivalent of an Areca palm (the guy in the nursery suggested this one after I asked for an Areca for its air ...
19
votes
1answer
6k views

Which tomatoes grow the best in high temperatures?

Which tomato varieties have the most heat tolerance? I live in a dry area (a steppe climate, or a Bsk climate with very hot summers), where the daytime highs are usually 89° F. or above in summer (up ...
36
votes
10answers
7k views

What is an effective organic pesticide to use against aphids or cabbage loopers?

I have a vegetable garden that bugs just love. Since my family is going to eat these vegetables (and I'd prefer that the bugs do not), what organic pesticide is most effective? The main culprits are ...
26
votes
9answers
22k views

How can I prevent squirrels (or other small mammals) from eating my tomatoes?

Something has been eating my tomatoes just as they begin to ripen. Each day I've been finding one or more tomatoes half-eaten but still attached to the vine. On a couple of days I've also found bits ...
18
votes
7answers
41k views

How can I get rid of rabbits in my yard?

I have rabbits that routinely build nests in my yard. How can I get rid of the rabbits legally? I don't want some officer from the DNR knocking on my door because I improperly hunted or poisoned them. ...
8
votes
2answers
3k views

Should I seal the wounds where limbs were removed on a crape myrtle?

I have a crape myrtle that I attempted to transplant last spring. Unfortunately, it didn't do so well (I damaged more of the roots than I intended), and while it did leaf out last year, after a long ...
5
votes
1answer
2k views

Can you identify this small, formerly flowering houseplant?

I received this plant as a gift. It had flowers, but they have long since vanished. The plant seems to be doing fine- it's been putting out new leaves, and it's been six months. I recently moved it ...
12
votes
2answers
6k views

What is this plant with long sharp leaves? Is it a weed?

In my garden I have several of the plants shown below. At first I thought it is a weed, but then it was quite robust against cold weather and continued to grow slowly: The leaves are long and sharp, ...
3
votes
3answers
781 views

What is this houseplant, and why has it been dropping leaves?

I bought this plant from Ikea about 1 year ago. Everything was fine until I decided to move it to a larger pot. I used soil for vegetables and I don't think the she likes it... the leafs started ...
74
votes
8answers
108k views

How do you identify a plant?

I'm pretty new to gardening and landscaping. Having recently bought a house, one of the things I'd like to be able to do is identify the trees and smaller plants that are on the property so I can ...
22
votes
2answers
69k views

How to fill low spots over existing grass in my yard?

I read this question and it made me think of what I need to do this weekend. But I have these questions: If I've got a few holes - maybe a place where a bush was dug out and the ground eventually ...
21
votes
3answers
3k views

How should I use corrugated cardboard for mulch?

I tend to have a lot of corrugated cardboard boxes laying around, due to getting various things shipped to my house. I have heard of using cardboard for a mulching material, but I'm not sure exactly ...
18
votes
1answer
2k views

How is crabgrass removed from lawns?

I have some crabgrass in various patches in my lawn that I would like to remove. At the same time, I would like to fill in some patches (and the crabgrass locations) with new grass seed. I can buy ...
16
votes
4answers
19k views

How should a lemon tree with yellowing leaves, peeling bark, and small fruit be saved?

Our lovely lemon tree is in trouble... We live in Northern California. Starting mid-last summer our tree began yellowing. We've called an arborist out to the house but the advice has been pretty ...
15
votes
1answer
12k views

When do I need to protect a fruit tree from cold, and how do I do it?

The last couple of weeks we had unusually warm weather in the Northeast -- several days had record warm temperatures. My pair of (two-year-old, 8' high) peach trees have buds earlier than usual. If it ...
14
votes
1answer
5k views

How do I prune the roots of a rootbound plant?

This answer talks about pruning the roots of a plant when it has become rootbound. How easy is it and how do you go about it?
9
votes
2answers
25k views

Why is my cactus droopy?

I have a cactus (pictured) which I bought about a month or so ago. It has been slowly drooping, although the tag said to keep it dry in winter and I have only watered it once when I re-potted it. The ...
9
votes
2answers
3k 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 ...
8
votes
10answers
5k views

How can I remove moles from my lawn?

The pest control professional told me that there may be moles in my yard. Some parts of the lawn were torn up, especially in small areas where the lawn did not grow well and was bare. They told me ...
9
votes
3answers
626 views

Non mechanical plant watering systems?

I travel too much, and, honestly I don't really have a green thumb plants. Still, I like them and would be happy to keep some resilient plants if could get geeky about it :) I was trying to figure ...
8
votes
2answers
18k views

What is this succulent weed?

This guy has been growing like gang busters in a newly planted bed of ground covering sedums. It's actually kind of a nice ground cover but based on its rate of spread and the fact that I didn't plant ...

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