Overwintering tropicals indoors and air humidity

Q: My rainforest plant collection thrived outdoors in our humid summer (I live in Maryland) but of course I had to bring them indoors for winter and now with snow outside they are suffering. Some leaves dried and fell of. Please advise how not to lose my babies over winter!

A: When overwintering tropical plants indoors, think about 3 factors: light, temperature, and humidity.
Light. Providing bright light is obvious, and all indoor gardeners are doing their best to have as much well-lit spots for their plants as possible.
TemperatureTropical plants, especially those from rainforest, do not enjoy significant fluctuations in temperature, so avoid following places: - neat hear register (or air conditioning vent) - in drafts - on a windowsill behind curtains at night
Humidity. Most tropical plants need more humidity than is available in the average, centrally heated home, but some rooms, such as bathrooms and kitchens, are more humid than others. To created humidity, fill a tray that is the same width as a plant, with pebbles or gravel. Pour in water, keeping the level at just below the top of the pebbles, then place your plant on top. The water will produce humidity as it evaporates. Alternatively, mist the leaves using a hand mister in the morning, so leaves dry before night. If you have hard water, use distilled or rain water. Grouping plants together will also increase humidity.

When should you start growing plants from seed indoors?

"Happiness held is the seed; Happiness shared is the flower." (John Harrigan.)

Q: Our growing season is very short so I decided to start some of tropicals from seed indoors. When should I start?

A: It is always a good time to start from seed. If you want to feel happier, get into gardening. If you want to feel God, start plants from seeds and watch New Life grow from a tiny grain.
Traditionally, people prefer sowing seeds in Spring, especially temperate species for vegetable garden: tomatoes, peppers, cucumbers... My grandmother up North started them in early Spring in small pots on a windowsill, then once the temperatures raised just above freezing, she planted them out in garden beds, and that early start always helped her to have the best early harvest in the neighborhood.
When we deal with tropical plants, "just above freezing" is not warm enough. Which means, you have to grow small babies indoors for quite a while, providing additional heating when needed. Heating pads always work best... When we had large size monitors and TV's, I always put couple trays on top of hot monitors, and even on warm top of a refrigerator, if space by the radiator was all taken. But that was in very cold apartment...
If you keep your living space around 75F (ideal for many species), this is a perfect temperature to get your seeds started. Tropical plants are not like annual tomatoes that try to grow through the season as fast as possible. They may take time. So the sooner you start, the more chances to get small seedlings just in time when Spring air outside is warm enough - at least in 70's.
A great advantage of starting tropical seeds indoors is controlled temperature and moisture. In the plant world, environment extremes are not good for germination process. Mild conditions of your home or a greenhouse create better chances for successful growth. Seeds won't get overheated in hot Summer sun, and won't get rotten because of a sudden heavy rain. Just keep in mind that some species require light for good germination.

Conditions for the best seed germination:
- Soak seeds for a few hours. Adding a few drops of Sunshine Seed Germination booster is very beneficial and improves germination rate by 30-50%
- Well-drained mix, you may use our Professional Seed Germination Mix. Put seeds not too deep (1/2 inch deep or less) to allow air circulation
- Keep warm (75-85F) and in bright light
- Keep soil slightly moist but not soggy.

See more info on seed germination

Check out our seeds selection.

What you need for successful growing Adeniums

1) Adenium plants - from TopTropicals Endless selection of Adeniums. We have double flower, red, purple, yellow and even black flowers!
2) A small pot with excellent drainage is a must. Position the plant in a pot, size of root system.
3) Adenium soil mix. TopTropicals Adenium Soilless Mix. Use only well-drained soil.
4) Lots of light. Adeniums need lots of light for heavy flowering. However from our own experience, in super hot climates, they look healthier in filtered bright light. After initial planting, once the plant is established and starts growing new leaves (may take a few weeks), gradually move it into brighter light.
5) Little water. Adeniums like a neutral to hard water. Acidic water tends to sour the soil too fast and may cause root rot. Water plants preferably in the early morning, and allow them to drink up throughout the day. Watering can be done daily to every few days. Do not water again until soil dries on surface. Never allow your plants to sit in a saucer of water, but don't let them to dry out too often - this causes adeniums to go into early dormancy. Adeniums do not like both over-watering or drying-out.
6) Fertilizer. To make your plant develop a large swollen base/trunk, you'll need a good quality fertilizer. Use slow-release granulated fertilizer for overall plant health, and liquid water soluble fertilizer for swelling up trunks that is also used to increase flowering. It shouldn't be too high in nitrogen, the middle number should be the highest (similar to 10-50-10). Never apply fertilizer directly on roots and do not liquid feed when a plant is thirsty: always water first slightly to avoid root burn and leaf drop. Do not wet leaves.
7) SuperFood micro-elements. Besides macro-nutrients provided by fertilizer, Adenium needs micro-elements for balanced development of root system and especially caudex: Sunshine-SuperFood.
8) SUNSHINE-BC. Spray leaves with SUNSHINE-BC once a month to encourage young growth, profuse flowering and large caudex.
9) Growing caudex. There is a secret how to create a large swollen caudex: raise the plant a bit every time you re-pot it, so that the upper part of roots will be a little exposed. The plant will form more roots that will go down.

See full list of Adeniums - plants and seeds.

Plant Horoscope. Gemini Zodiac lucky plants: Ferns and Aralias

Gemini - 5/21-6/20. Ruled by the mutable, changeable planet Mercury (also patron of the art of medicine), Gemini is an AIR sign. Plants ruled by Mercury tend to have ferny or highly-divided leaves or stems (like the bronchi of lungs), hairy or fuzzy leaves (related to the cilia in the lungs), or subtle odors.

Gemini rules the lungs, shoulders, arms, and hands. Its plants help to strengthen the lungs and respiratory system, relax the nervous system, strengthen ears and hearing, the tongue and speaking, the vocal cords, lungs and thyroid, as well as the shoulders, arms, and hands. Gemini has so much going on mentally that they may need a little help to digest all the information they're constantly absorbing. Herbs that have clean, pure flavor not only help physical digestion, but assist spiritual and mental intake as well.

Gemini Zodiac lucky plants: Ferns, Blechnum, Tree ferns and Cyatheas, Fern Tree, Aralias, Jackfruit and Breadfruit, Paulownia, Anthurium, Philodendron, Philadelphus, Clerodendrums, Anise, Lavender, Myrtle, Nut trees, Macadamia, Ficus, Piggyback plant - Tolmiea menziesii, Aloe vera, Fig , Honeysuckle, Azalea, Mint Tree Satureja, Vitex, Ironwood, Mulberry, Osmoxylon, Acalypha, Allamanda, Aphelandra, Iboza, Ruda, Kiwi, Caesalpinia, Cyphomandra, Monstera, Kalanchoe , Magnolia, Oregano, Ocimum, Naranjilla, Zamia, Delionix, Acacias, Calliandra, Patchoili, Palms, Geranium, Grevillea, Eucalyptus.

For other signs information, see full Plant Horoscope.