Devil Flowers - Bat Lilies - for Halloween!

Tacca. Growing Tacca is a great way to have an unusual flower or novelty plant, both indoors and out. Tacca is an exotic plant with flowers that mimic a bat in flight, deep purple (or white), with ruffled wings and long, hanging filaments. Curious, bat-like inflorescence both in shape and color, with wide spreading, wing-like bracts of rich maroon-black (some varieties have white flowers), accompanied by long trailing filaments or "whiskers"; the small black flowers are succeeded by heavy berries; corrugated olive-green leaves with oblique base surround the bloom... Those in warm areas can learn how to grow the beautiful and unique bat flower outdoors. In more seasonal areas, bat flower info says the plant and frilly flower grows vigorously indoors when it is happy with the conditions.

How to Grow Bat Flower. Growing bat flowers requires a little extra care, but blossoms of this unusual specialty plant makes it worthwhile. Large plants usually have a greater rate of success than smaller ones. Keep your bat flower away from cold temps and away from direct sun. When growing this plant outside, plant it in the shade. Care of bat flower indoors will include a shady location as well, and yearly repotting for the rapidly growing plant. This plant does not like to be root bounded. Pot up until reaching a 10- or 12-inch pot; after that, trim the roots and return to the same size pot, if desired. Well-drained soil is a must when growing Tacca bat flowers and should remain slightly moist. Soil should be light and retain moisture but never allowed to get soggy. Our special potting mix will work best for this plant.
The plant should be allowed to dry out during dormancy. Keep this in mind during its time of rest, in fall and winter. In warmer areas, bat flowers reportedly do not experience a dormant period. Fertilize monthly or every six weeks with a slow-release plant food.
For improving cold hardiness in winter, and heat tolerance in summer, apply SUNSHINE-E booster once a month. Tacca, as well as most plants with large lush foliage, responds well to such treatments, the plant will look greener, healthier, and bloom more readily.

Black Tacca and White Tacca, as well as Tacca seeds are available from our store.

Overwintering Adeniums outside of tropics

Q: We bought several adenium plants from you. We are moving to the Denver area of Colorado. How can we make sure the plants survive? Should we use a green house?

A: Adeniums are perfect container plants, and house plants. They can be easily grown outside of tropical climate. During winter, Adeniums drop leaves and go into dormancy which makes it easy to keep these plants in a dormant stage in a warm location of your house, or possibly even in well-lit spot of garage (with a window), with temperatures above 50-60F.
Here in South Florida, during time of cold, when chances of freeze are high, we move our own Adenium collection into lanai, with plastic sheet protection around lanai.

In colder climates, Adeniums can be kept indoors as house plants during winter. There are some requirements/tips for you:

• Temperature. Move Adeniums indoors when temperature starts dropping below 45F.
• SUNSHINE. Use SUNSHINE boosters to improve cold resistance of Adeniums, and essure healthy plant throughout winter. SUNSHINE-BC formula is specifically designed for plants with caudex, and bonsai.
• Water. Reduce watering to minimum, especially when plants drop leaves - this means they went into dormancy. Once a week light watering is enough. Water very carefully during cooler months. When it is hot (85-100F), excessive water usually won't harm adeniums: it will be partially used by a plant, and partially will evaporate. Especially be careful with water when temperatures drop below 65F - then tropical plants simply stop growing process and go dormant. Once adeniums start losing leaves, this is a sign to reduce watering to once a week to once a month, and in very small quantity (couple tablespoons per pot).
• Light. Bright light is not necessary, but do not keep them in dark either, even if all leaves dropped. Good light is necessary to maintain healthy stems and caudex. Keep in mind, the less light, the less watering too. Ideal spot is a windowsill, however if your space is limited and all windows occupied by other "leafy" plants, location close to window will be enough as long as watering is reduced, to avoid rot. We keep our big collection specimens on a roofed porch during winter, where level of light is very low. Last winter we haven't lost a single plant due to low light. They take shade pretty well considering minimum or no water. However bright light is always better - it creates healthier environment for a plant. We all know about space limitations for our large collections, especially in winter. So if you can afford a bright spot for adenium during winter - the plant will be lucky!
• Soil. Use only well drained mix with much higher content of perlite than you would use for most tropical plants. For adeniums, we use mix with 30-40% of perlite in it, while regular mix has 10-15%. Adeniums like alkaline soil, unlike most of tropical plants (hard to say what else likes alkaline... Ficus for sure!). This means, regular mix with high content of peat moss may cause root rot. To increase alkalinity, you may add dolomite. Here in Florida where we have natural supply of shell rock handy, it is easy to add some shell to a potting mix (shell sand, rather than quartz sand). We always add a few large shells on top of a pots with a big specimen. Besides increasing soil pH (making it more alkaline), shells look very decorative.
• Fertilizer. No fertilizer until Spring when plants start showing new growth and new leaves.
• Move your Adeniums outside in Spring, when chances of freeze are zero. More sunlight and air circulation is beneficial for breaking the dormancy and providing plants with a quick growth start.

Growing gardenias indoors

From Brian B, WI: Just wanted to share this photo of one of the plants my parents got from you 3 months ago.

Q: Gardenia taitensis is my favorite gardenia. I would need to keep it indoors under a grow light. Is it worth trying to grow indoors or is really difficult? If so, can you recommend and indoor plant that has big fragrance and blooms often?

A: When growing gardenias indoors, four most important factors must be taken in consideration:
1. Bright light (Southern window and/or proper lighting set up)
2. Proper watering (gardenias love water, but roots are very sensitive to excessive water)
3. Rich organic soil with perfect drainage characteristics, regular feeding with high phosphate component and micro-elements containing Iron or Ferovit.
4. Insect control (inspect underneath leaves regularly and apply systemic or on-contact treatments as needed). See target=_blank>Top Tropicals video on easy insect control.

We definitely recommend Gardenia taitensis (both single and double flower varieties) for indoor culture. Another species, Gardenia vietnamensis, is even easier in cultivation as it takes wide range of conditions and may tolerate slight overwatering (unlike other varieties which are more sensitive). These three mentioned gardenias are somewhat tolerant to low light conditions. Under a proper care, they will grow successfully even in bright shade, however for blooming they require as much light as you can provide. Properly adjusted growing light may be helpful. You may refer to our article about indoor plant lighting in our magazine Tropical Treasures, Issue # 15, or website page.

Taking care of Soursop after shipping

Q: Since I have never grown a soursop tree before I need some pro help. My tree was delivered absolutely beautiful, leaves were a pretty green. I potted it and gave it a good drink of water and put it in a shaded area outside. Then the weather here became cool so I brought it in for a few days until the weather warmed, and it lost all the leaves. Is it in shock and will come around eventually? Will I be able to grow this tree indoors during winter?

A: Soursop - Annona muricata trees are very sensitive to temperature drops. This always causes leaf loss. You seem to be doing everything right. Do not water until soil gets slightly dry; keep it in bright shade. The weather should be good now with high temperatures and humidity rising. No fertilizer until the plant shows active new growth. Be patient with your plant, it should recover soon.

Soursop is an ultra-tropical tree and doesn't take any freeze. If you live in cooler climate, keep the plant in a pot (the good news is, Annonas in general have compact nature and are perfect for container culture). Bring the tree indoors during cold period, providing bright light.

We have very interesting article about growing and fruiting Soursop in apartment. Check out 4534 Tropical Treasures Magazine # 7.