Rose: Keep the soil evenly moist by watering at least twice a week. The soil for roses should be watered deeply, but infrequently, so that the surface can dry out between watering. This will not only encourage strong root growth but also prevent fungus to spread rapidly on the moist surface. Moisture trapped by soil or mulch around the base leads to rot, killing plants. Also, always water roses in the morning.
Tip taken from: http://www.lillysrosegarden.com/rose-care-tips.html
Bouvardia: Place the plant in full to partial sunlight daily for Bouvardia plants thrive on sunlight. Water the plant on a daily basis, and water thoroughly until water trickles from pot bottom. Wait until soil surface is visually dry before watering again. During the winter, water very lightly.
Tip taken from: http://www.ehow.com/how_5691177_care-bouvardia-plants.html
Sunflower: Sunflowers are sensitive to the amount of sunlight they obtain, and how much water required to optimize their growth. Sunflowers are generally quite hardy to short dry or wet spells, but of note for the sunflower is the need to check that the sunflower does not get overwatered for an extended period. Too much water may result in the soil loosening and becoming far too unstable to support the weight of the sunflower head as it sways in the wind.
Tip taken from: http://www.sunflowerguide.com/sunflower-care.html
Trachelium: Keep the soil evenly moist and if you use rainwater, be careful as it could be acidic. Use warm water. It is a very thirsty flower that will wilt quickly if left out of water.
Bonsai: To keep a bonsai tree nice and small, you need to prune it. How you go about pruning will depend on the individual tree and what shape you want. However make sure you buy proper pruning tools for bonsai trees to make sure you get the results you are looking for.
Since bonsai are in pots, hence have fewer roots and little soil to grow into, watering them frequently is important. In summer, the sun will heat the pot and will increase the rate at which water will evaporate, even before the bonsai tree satisfies its thirst. However, watering too often is not good. It could cause root rot, fungus or other diseases.
When watering your tree, it is important to flood the soil even if you have to do it two or three times. That way you ensure that the soil will absorb the maximum of water. Growing bonsai in a soil that contains particles that absorb water is ideal
Tip taken from:http://www.mishobonsai.com/bonsai-tree-care.html and http://bonsaitreecare.org/
Orchids: The general rule of thumb for orchids grown in the home is to water every 5 to 12 days. To know whether your orchid is getting the proper amount of light, look at the leaf color. Generally speaking, the leaves should be bright green rather than dark green. Dark green indicates too little light while reddish green indicated too much light.
Tip taken from: http://www.beautifulorchids.com/orchids/orchid_care_tips/faq/frequently_asked_questions.html
Lily: Try to handle them as little as possible, taking extra care to avoid touching the flower heads themselves. Never place your fresh flowers where there might be a warm draft, such as, the top of a refrigerator or beside a heating vent. Fresh flowers last longer when they are at room temperature or lower. Always keep the water level in your vases or buckets topped off. Be sure to never submerge the Calla Lily flowers.
Tip taken from: http://www.flowers.pacificcallas.com/callalilyflowertips.htm
Ranunculus: this flower needs full sun. You can give it morning shade but by noon the ranunculus has to be in full sun if you want to see blooms. If in doubt, give it more sun.
Remove all foliage, re-cut stems and change water regularly. The stems are inclined to buckle. If you don't want them curvy, insert a flower wire to keep them upright.
Tip taken from: http://www.phancypages.com/newsletter/ZNewsletter2704.htm
• Carnations need some hours of full sun each day and should be kept moist.
• Avoid over-watering as it may tend to turn the foliage yellow.
• Spent flowers should be removed promptly to promote continued blooming.
• Quality of the bloom rests on the soil and irrigation aspects for growing carnations.
• The plant foliage should not be exposed to the direct heat of a stove or the sun.
Tip taken from: http://www.theflowerexpert.com/content/mostpopularflowers/carnations
• Cut off any white portion of the stem to allow better fluid intake. To prevent the intake of air into the stems, give them a fresh cut under water. Place immediately in a vase filled with water and fresh flower nutrients (preservative).
• Re-cut 1 inch from the flower stems every 4-5 days to maintain water uptake. Do not place in the same container as daffodils that have been re-cut. The sap from the daffodils can kill the tulips.
• Check the water in the vase frequently.
Tip taken from: http://www.bigy.com/content/flrl/prep/care_cuttulips.php