For all questions about plant growth

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9
votes
2answers
2k views

How does pH affect plant growth?

I am aware that different plants thrive/need different pH levels to grow. What is it about the alkalinity/acidity of the soil that effects how a plant grows? Note: I understand that this could have ...
2
votes
1answer
20 views

How can I keep bare root blackberries viable for 8 days?

I ordered some bare root blackberries for myself and a friend. They left the nursery last Friday, but my friend won't be able to pick them up and plant them until Saturday. What can I do to ensure ...
3
votes
1answer
113 views

What is the name of this purple-flowered climbing plant?

I bought this plant today, it has purple flowers and it climbs. I forget to ask the seller about its name and I regret it! Any recommendation on how to care for this plant? Should I keep it in a ...
5
votes
3answers
3k views

Glass vs plastic greenhouse covering: pros and cons

When building or buying a greenhouse, it seems to me that the material to use is one of the first concerns. The two options I'm trying to compare right now are glass and plastic films. The ...
4
votes
2answers
347 views

How do I grow a basil plant tall?

In my workplace we have a competition on who can grow their basil plant the tallest in 9 weeks. I know next to nothing about gardening, so I would appreciate tips. The plants are store bought, so ...
4
votes
1answer
29 views

Once the fava bean pods are formed, does the plant need a lot of sunshine to grow?

My fava bean plants now formed pods. It is getting around twelve hours of sunshine on the roof. I am worried that the weather is now getting too hot, in Egypt. Should I move it back to a shady balcony ...
4
votes
1answer
64 views

What is the name of this plant and how to make it grow horizontal branches?

I have a really nice plant that grows high. I am afraid that the trunk won't be able to support it one day and it will just break. Is there a way I could force this plant to grow horizontal branches? ...
5
votes
1answer
63 views

How fast do banana plants grow?

Last fall I picked up half a large banana plant corm from the refuse pile at the local gardens, planted it in a 12" pot with loamy soil, and stuck it in my growth chamber for months of benign neglect. ...
3
votes
1answer
25 views

How can I get my fava beans to grow faster and start flowering?

I planted some fava beans in large pots late october. They should be flowering by now, but all I can see is small flower buds, only in a couple of the plants. And it is growing very slowly. What can I ...
2
votes
1answer
30 views

How should I prune a cleistocactus that got too tall?

When I have a slender, columnar cactus like a Cleistocactus (pictured below), and it gets too tall, How can I prune it, to get it back to a manageable height?
2
votes
1answer
35 views

Why did my Agave plants stop growing shortly after sprouting?

I planted some agave seeds about two months ago, which sprouted into 4 or 5 little 0.5 to 1 inch sprouts within a couple of weeks. However, they haven't grown at all since then. I water them about 1/3 ...
2
votes
1answer
46 views

How do trees respond to solid, isolated, chunks of minerals such as iron, placed in the root zone?

Let's say you had a cast-iron pan and an apple tree that you were going to plant. Let's say you dug a large hole, threw the pan in and planted the tree near the pan. One might imagine that the tree ...
2
votes
2answers
72 views

Will rhizomes that have been in the fridge still grow?

I have some galangal, ginger and turmeric that have been sitting in the fridge. Is it still possible to get them to grow, and if so, how? Update: I tried ginger, tumeric and galangal. Initially I ...
3
votes
2answers
134 views

What is apical dominance?

When pruning trees, most notably conifers, you must be aware of a phenomenon known as 'apical dominance', when choosing your pruning technique, and selecting shoots for the permanent structure. What ...
3
votes
2answers
118 views

How can I keep my cycad from growing too large?

For the first year, my cycad was a stout and aesthetic little plant. But then its annual fronds shot out. And they kept shooting out. And today the plant looks like this: Each frond is about 2 feet ...
3
votes
2answers
141 views

What's the difference between annual, biennial, and perennial plants?

Before deciding whether to purchase a plant, and how best to plan where to place it, the basic knowledge of how long it lives and how often it blooms is a necessity. What's the difference between ...
3
votes
1answer
235 views

What is the term for this pruning technique that causes stubby, clublike branches?

These Platanus × acerifolia trees (London Planetree) were pruned to have this short, stubby branch structure. What is this called, and how is is done?
3
votes
1answer
630 views

What's the difference between corms, bulbs, and tubers?

Some plants, such as tulips, daffodils, and onions, grow from bulbs. Others, such as crocosmia, gladiolus, and taro, grow from corms. And then there are tuberous plants, such as potatoes, dahlias, and ...
5
votes
2answers
98 views

What are the consequences of espalier on a non dwarf tree?

I read a recommendation that espalier should be performed with trees grafted onto dwarf roots. What challenges or problems can I expect if I don't use a dwarf tree? If it makes a difference, I'm ...
3
votes
1answer
42 views

What is the best way to kill a banana shoot but not the entire plant?

Well the recent winter was pretty bad for the bananas, so I cut them down to ground level, and new shoots are coming up. Great (although that means no flowers or bananas this year). The problem now ...
0
votes
1answer
50 views

looking for a fast growing Leucaena leucocephala seeds [closed]

I am looking for a fast growing Leucaena leucocephala seeds. Now, I am cultivating Leucaena leucocephala which can grow 6.00 Meters in a year. But I am looking for a genetically improved seeds which ...
3
votes
1answer
94 views

How can I keep my flamingo plants small for a terrarium?

I have some flamingo plants, Anthurium sp., growing in my 60x100x60 cm rainforest terrarium. My problem is about this big one here It's about 60cm in height, and I want it to keep it a bit smaller ...
5
votes
1answer
820 views

What is the best light spectrum for growing chili peppers?

Natural light is best for plants during all growth phases, but I'll be growing indoors, It's a good idea to have a basic understanding of the light spectrum and how it affects plant growth, in order ...
2
votes
2answers
50 views

How tall can grape plants get?

Looking at grape plants, I noticed that they all say the height is variable, or only list the spread of the plant. Does that mean that as long as I provide a tall enough trellis, I could grow a grape ...
6
votes
2answers
181 views

If I plant strawberry plants in the fall, would I still need to pinch the flowers for the first year?

For strawberry plants, I know you're supposed to take the flowers off of them for the first year (pinch them) so that they focus on developing the plants rather than the fruits. Then the fruits ...
7
votes
1answer
273 views

What to do about carrots that don't seem to be growing?

It's my first time growing carrots and the leaves don't seem to have grown in the last fortnight. I'm worried that there's something wrong but there're no obvious problems as the leaves are still ...
4
votes
1answer
66 views

When should I see growth on my Morning Glory?

I cut down my Blue Dawn Morning Glory and brought the pot inside before the freeze this winter. I put it back outside about one month ago. The one inch piece that's poking out where I cut it looks ...
3
votes
1answer
176 views

Is it too late for this tomato?

I started these tomatoes on the soil and they were kind of crowded. I placed 2 of the largest ones in a separate container and they already have 2 tomatoes and lots of flowers, these where the others ...
3
votes
1answer
94 views

Will Chanterelle mushrooms grow under shrubs in my yard?

I would like to grow some Chanterelle mushrooms (Cantharellus cibarius) under some shrubs in my yard. Will they grow in the narrow space between the shrubs?
4
votes
1answer
61 views

What is the minimum hydroponic pot size?

I've got a doubt about what would be the minimum medium space a plant needs to grow. I'm making a hydroponic system, and I would need to know what is the dimensions of a plant's root required for it ...
2
votes
1answer
110 views

When do Big Max pumpkins start to produce?

I have a Big Max pumpkin that sprouted a little over a month ago. It's looking good and producing lots of leaves, but I haven't seen the first sign of buds anywhere. I've never done pumpkins before, ...
2
votes
1answer
96 views

Will planting Pachysandra terminalis affect existing shrubs?

I'm considering planting Pachysandra terminalis around the base of a few shrub/tree stands, but am concerned it may negatively effect the growth of the existing trees/shrubs. The first area is ...
6
votes
1answer
363 views

Ginger plant too tall for its own good

My ginger plant is about 33 inches (85cm) tall now, and still plans to get taller. Is this normal? I'm afraid it will fall off and break its stem, and I really don't want to hurt the root down there ...
8
votes
2answers
2k views

What is the effect of streetlights on plants?

This may be totally off the wall, but the sunflowers growing around my garden are bigger the nearer they are to the street light. I've seen documentaries with marijuana labs in California where they ...
3
votes
2answers
413 views

Ginkgo Biloba growth rate

For years I dream to plant a Ginkgo Biloba. And the other day I found two ones in a shop. The first one was really cheap, but really little with its head having been cut off... it was something like ...
1
vote
1answer
202 views

What are the optimal N-P-K levels for fertilizing potatoes?

I have some russet potatoes that seem to be doing well growing in a plastic tub. (This photo was taken near sunset; they do get 8+ hours open sun.) I have a choice between these three fertilizers, ...
1
vote
1answer
262 views

Where does the carbon that makes up a plant come from?

I have had this question throughout the time that I have been gardening. Where exactly does the carbon that goes into the plant structure? Is it like the nitrogen cycle? Does it come from the air? Is ...
1
vote
0answers
40 views

Plants growth rate [closed]

I'm making a "device" to plant some vegetables, and I would find more than useful to know what growth/time equation plants follow. It is linear?, or do some plants growth exponentially?. Not sure ...
2
votes
1answer
45 views

Miracle Fruit grow rate

How long does a Miracle Fruit Tree (Synsepalum dulcificum) take to grow to (say) 2 feet? I've just got one that's 5 inches tall and has 6 leaves and was wondering (1) how long it would take to grow ...
9
votes
2answers
1k views

How do I grow root vegetables hydroponically?

Hydroponics is the method of growing plants in a soil-less medium. I've always wondered, how does someone grow a mainly root/bulb-based vegetable (potato, turnip, onion, etc) in a hydroponic ...
5
votes
1answer
1k views

What are the odds of getting a shea tree to grow in South Carolina, USA?

What are the odds of getting a Shea Tree to grow in South Carolina, USA? Temperatures here in SC range from mid 30s (occasionally around 40) Centigrade in the summer to -10 at the coldest days of the ...
8
votes
1answer
3k views

Why isn't my lemon tree growing?

We planted a lemon tree five and a half years ago. Today it's about the exact same size as ever. I've tried using citrus fertilizer, but to no avail. We've had dry summers and wet summers, but ...
3
votes
1answer
68 views

What determines the year-to-year growth in girth of any particular tree?

I'm growing some apple trees from seed and started this year. I'm worried that the width of their stems (or trunks, but they're too small to really call them "trunks") is too small in proportion to ...
2
votes
1answer
932 views

Why won't my new Venus fly trap trap anything?

I just bought a Venus fly trap a few days ago. My new Venus fly trap won't close ANY of its little traps. I put an ant into it and none of the traps closed. Is this natural?
5
votes
1answer
210 views

Is High-Intensity Discharge (HID) lighting better overall than Compact Fluoresent Lighting (CFL)?

For hydroponic horticulture are Metal Halide (MH) and High-Pressure Sodium (HPS) lights still the staple/better choice for growing indoors or do Compact Fluoresent lights (CFL) offer enough light ...
3
votes
1answer
382 views

Why my tomato plants grows so slowly?

I've started growing a tomato plant a month ago and it is still pretty small. Around 7 cm high. I grow it with a small fluorescent light ( T8 model ) in my basement. Why is it growing so slow? Is ...
4
votes
1answer
3k views

Can I make my Jade plant grow faster?

A year ago, my grandmother gave me a cutting from her jade plant and it has grown a little since that time. I repotted it about a week ago because the pot it was in was beginning to get too small. I ...
8
votes
1answer
941 views

What light cycle should I use to grow herbs indoors?

I would like to have a small container herb garden indoors this winter, but I want to make sure my herbs do not try to flower. Currently, it's a couple of different basil plants and some rosemary, ...
1
vote
2answers
116 views

What books would be most useful as a reference for (vegetable) gardening?

There are a few main subjects such a book should cover, such as: the seasonal dependence of various plants (which can grow when, and when can one grow what), descriptions of the specific care ...
4
votes
2answers
7k views

How can I get lemon trees to bear fruit?

I have a couple of lemon trees (small plants really) in my garden. But they seem to grow at an awfully slow pace.They are about 2 years old & about 3/4 ft in height. I have seen pictures of lemon ...