Soil does not make plants grow. It is merely a medium that supports the plants roots. It is the nutrients within the soil and photosynthesis that make the plant grow. In hydroponics, you provide all nutrients to the plants through a nutrient and water solution. And support to the roots through the use of a medium.

Several flight experiments have been performed on plants, particularly on wheat. Part of the grass family, wheat is known as a cereal crop and typically used in making bread. In a microgravity environment, germinating seeds tend to grow normally with the shoots growing towards the light (positive phototropism). The roots do not exhibit phototropism, and they tend to grow whichever way they please. They will, nonetheless, usually stay within the moist medium in which the plant is growing. See similar questions...

No, but close. We are still balancing the size of our electronic catalog with the time it takes to access the information. We currently have about 95% of our varieties on our site. You are welcome to call if you don't see a variety you want, we are probably growing it. If you are looking for an item from last year's catalog that is not on the site, call us, we may have a limited supply available. We offer a 100% unconditional guarantee. See similar questions...

You may pick up a soil testing kit at the Northern Virginia Soil and Water Conservation District office or at any Fairfax County public library. The kit has instructions explaining how to send a sample to a lab at Virginia Tech. For a fee of $7.00, the soil testing lab will send you an analysis within two weeks. "Testing Your Soils Fertility," an article from the NVSWCD's publication Conservation Currents provides additional information. See similar questions...

Yes!! Plants live and thrive in Plant Gel because they have water, nutrients and air around the root base at all times. See similar questions...

None. Orchids do not grow in soil. In the wild, most orchids are found high above the jungle floor, in the tree canopy. For best results, orchids should be grown either in New Zealand sphagnum moss, fine orchid bark mix or medium orchid bark Mix. Orchids must be grown in pots with good drainage. Soil is bad for the plants because it cuts off air circulation at the roots and blocks the drainage of water. See similar questions...

its botanical name suggests, the tea plant is a variety of camellia, and like other camellias it can be cultivated in a home garden. It is not well suited to indoor cultivation, though. It grows best outdoors in climates like its native ones: temperate, with warm summers and cool (not cold) winters. In the United States, the best climate is probably like that found in the Carolinas. See similar questions...

Yes, but they will perform best in slightly acid (6.0 to 6.8), rich in organic matter, loam soil, with excellent drainage. If your soil is sandy or clay it can be improved with the addition of organic matter. Soil pH can be raised with the addition of lime beginning with an application 6 lbs. per 100 sq. ft. or lowered beginning with 2 lbs. of sulfur per 100 sq. ft. If your soil is extremely poor, consider building 18" raised beds or removing and replacing existing soil to a depth 18 inches. See similar questions...

Poison ivy, oak, and sumac grow almost everywhere in the United States, except Hawaii, Alaska, and some desert areas of the southwestern United States. The prevalence and structure of each plant vary by region. See similar questions...

Paphs are such a diverse group that you should have no problem adding some hybrids or even species to almost any collection, regardless of your growing conditions, even if you are already growing just other non-orchidaceous plants. See similar questions...

Yes, you can. All you need to do is wash the roots of the plant by dipping in water and try to remove as much of the soil matter as possible. Be very careful with the delicate roots so the plant doesn't go into too much transplant shock. After the roots are somewhat clean go ahead and pot the plant in any of your favorite hydroponic media and begin a standard watering regimen. See similar questions...

A general answer to your question would be a soil that is moist and well drained. However, that only tells part of the story. You see, there are many types (species) of conifer. If you look, you can find a type of conifer for every type of soil. Some conifers grow only on sandy, well drained soils. Some only on soils that are wet most of the year. It's also important to find a soil with the right pH balance (pH tells whether the soil is acidic or basic). See similar questions...

It is messy and unnecessary. People who say that soilgrown wheatgrass has more minerals do not realize that plants do not absorb minerals from the ground until they have a taproot. Sprouts and wheatgrass are not grown long enough to have a taproot. I use kelp liquid as a foliar feeder and that adds all the minerals you need. Another reason not to use soil is that you can actually juice more of the whole plant when you don't have to worry about soil contamination in your juice. See similar questions...

Sounds like you're here for the winter climate and not the natural beauty the desert offers. There are plenty of non-native plants available in the nurseries that are drought tolerant, don't have thorns, and will thrive in a Tucson landscape. They may have small leaves, thick stems, and look best in the spring and fall like many native plants. See similar questions...

Usually - generally the bigger the pot, the better. It's easier to water and feed. Pots can of course be moved around to create different effects. See similar questions...

yea i built the 11 plant hydroponic system and im going to get a pump right and ive seen pics of a tube coming out of a container does that connect to the 1/2 inch hose connecter does that bring water up back to flow or is that to give to oxygen to the roots ,sorry but im new to this Ron, Trialbozz here from Victoria BC. I've been reading your discussion board and must say it has answered many questions I have had. I noticed you have shied away from questions regarding aquariums. See similar questions...

Plant requirements vary. Certain soil types (etc. acid, clay, sand, chalk, loam etc.) and conditions (sun or shade, dry, damp, waterlogged etc.) are better suited to some plants than others. The right choice of plants is essential for a healthy and vigorous garden. Plants that are not given favourable conditions will not thrive. See similar questions...

This depends on when you start 12/12 light cycle (flowering), if you are growing from seeds or clones, and your grow conditions. The above information shows what height you can expect when starting 12/12 at the height indicated. If you are growing in a cupboard, grow-box, closet, etc. and concerned about height start flowering early at 6-8 inches. There are various methods to control height gently and effectively as well. Try LST (low stress training) for example. See similar questions...