What causes plants to look dirty and lose their green color during the heat of the summer? One culprit is spider mites. H Family and Consumer Science Agriculture Horticulture Youth & Families with Promise Food Sense Nutrition Education

Feed the bulbs in early spring with a recommended bulb fertilizer or one low in nitrogen. Allow the bulbs to bloom as usual. Wait until the foliage dies back and separates easily from the bulb when given a gentle tug. If you cannot transplant them immediately, mark their location and transplant anytime through late summer. Fertilize again in fall.

You must wait until the foliage turns yellow so that the plant can return its nutrients back to the corm of the bulb.

After tulip flowers have faded, "dead-head" them by clipping off the faded blooms so that they won't go to seed. Narcissi/Daffodils do not require dead-heading, just leave them as is. The main requirement for bulb flowers in the post-bloom period is to leave the leaves alone so the plant can put its energy into "recharging" its bulb for next spring's performance.

When you see new growth appearing, usually in the spring, cut out all the browned grass. For more lawn and garden questions, see our article library or FAQs. I also recommend the National Gardening Association web site for questions that are not answered by our site.

The overall cause of a bulb not producing a bloom, but lots of nice leaves, is either the flower bud was damaged or a flower bud wasn't formed. No bud equals no flower. Cultural conditions can also lead to diseases or conditions that cause the leaves to be deformed or the bulb to disappear. The following may lead to no flowers: FERTILIZING AND WATERING: If bulbs have been fertilized or watered too much. Most bulbs prefer dry summers and a single application of bulb fertilizer in the fall.

When doing a new planting, use one part Spring Earth mixed with three parts of soil as a backfill. For plants already in the ground, add a 1" top dressing of Spring Earth.

On average, the French tulip is over 8 inches longer than the standard variety. French Tulips are tall, elegant and statuesque. They come in a wide array of spectacular colors, including shades of red, orange, yellow and pink.

Since bulbs get energy from the nutrients produced in the leaves, you should wait until the foliage turns brown before cutting them back.

Eye Saver bulb is a full spectrum lamp with 100 CRI, higher than the CRI of a full spectrum fluorescent. Due to this wide color range, Eye Saver provides warmer color than a full spectrum fluorescent. (back to top)

The tulips are in full bloom from around mid-April to mid-May, although the weather just prior to this period may lengthen or shorten this time frame by a week or two. Visit our Tulip Time page for more info.

These bulbs, along with other spring flowering minor bulbs can be planted until the soil freezes. Be sure to, add a generous (2-3") layer of shredded bark mulch, straw, or evergreen boughs immediately after planting. First, treat the soil with soil sulfur, or iron sulfate. Mulch the entire area under the branches with one to two inches of peat moss, then shredded bark mulch.

It has been proven that tulips continue to grow in water and will curve towards light. This problem can be rectified by wrapping the individual stems tightly in newspaper and standing them in water directly beneath a light for a few hours.

Skip MNZ4 - You're kind of in spot, all right. If you don't cover them up to protect them from the frost and it freezes for a few hours or overnight that's probably the end of your spring show. If you add mulch to protect them they may be OK. Usually, when the temperature drops down to 32 degrees F stem elongation really slows down but doesn't stop altogether. You might add 6 to 8 inches of protective mulch during the cold period and then when warmer temperatures return, take it off.

Tulips were introduced into the Netherlands at the end of the 16th century by Carolus Clusius. People in the Netherlands were quick to take an interest in these bulbs and started experimenting with growing them in the gardens around their homes. Because the demand for tulips grew, an increasingly professional approach was devoted to their cultivation, and it turned out that the coastal area ? and especially the strip of land just inside the Dutch dunes - had the perfect conditions for this.

Depending on the type of lamp, our lamps are rated for 600-1000 hours of tanning life. We change our bulbs on average 200 hours ahead of the manufacturers recommendations.

We do not yet have the physical measurments of intensity that many people are using to compare the products out there, such as watts/cm2, joules/cm2 and lumens. We will have these measurements taken by an independent lab in the near future. In the meantime, consider this: the treatment distance for most other in-home "acne lights" is 6 inches from the light. The effective treatment distance for these lights is up to 36 inches from the light.

There are approximately 40-46 leds on the chip. For a detailed explaination of LED chip technology, please click here.

Under normal home phototherapy usage, the bulbs have a useful life of at least three to five years, and as many as ten years. Fluorescent bulbs gradually lose power over time so that over many years, treatment times are perhaps double that of new bulbs, but the type of light remains consistent (has nearly the same relative spectroradiometric profile). The decision to replace bulbs is therefore only a matter of the patient's tolerance of longer treatment times.