Growing desert roses

Q: I purchased a Desert Rose and planted it in Adenium mix. I keep it in full sun with once a week watering assuming this is a desert plant that likes lots of sun. Some leaves turned yellow and now I am not sure should I move it into shade or need to water more? Or maybe fertilize with something?

A: Desert Rose - Adenium, unlike cacti and other succulents, prefers filtered light. It can grow in full sun but leaves look healthier in light shade. Watering must be very moderate, however don't let soil harden like a rock: water again right after the soil gets dry. We suggest to use special Adenium Mix. Cactus mix may work well, as well as regular potting mix, in which case it is recommended to add a bit of limestone (we simply put sea shells on top of the pot - it looks very pretty!) - because adeniums prefer slightly alkaline soil (while most of tropical plants like acidic soils). If leaves turn yellow, this may be a sign of underwatering. Use water soluable fertilizer with high phosphate as foliage spray, and only on healthy plants, according to label dosage. It helps both caudex growth and flowering. Make sure to avoid fertilizer contact with a caudex.

RECOMMENDED SUPPLIES:
Adenium Plant Food - Flower and Caudex Booster
SUNSHINE-BC - Caudex booster
Adenium Soilless Mix

Read more about growing Adeniums:
What you need for successful growing Adeniums
Growing Exotic Adeniums

Three interesting varieties of Avocado

Q: I intend to gift three avocados, at least one type A and one type B, to a friend who lives in an area where the temperature never goes below 25F. The idea is to give them a ripening season as long as possible. Which combinations do you suggest, and which are the A and B?

A: When talking about "A" type and "B" type in Avocados, we are referring to the flowers. An avocado will produce both male and female flowers on the same plant. "A" type means that the flowers are female in the morning and male at afternoon. "B" type means that the flowers are male in the morning and female in the afternoon. If you plant to start a commercial growth, then it's important to create a proper mix of both types. However, in hot and humid climate a single tree produces flowers of both types, so it is NOT necessary to have both A- and B- types planted together in the backyard. Even a single tree produces enough fruit for a home gardener.

It is also important to know that while there are "more cold hardy" avocados (hardy to as low as 15F), it refers to a full grown established tree. Young trees still need protection from the cold until they are bigger and more established. One can not expect a small tree planted in June to survive the first winter with a hard freeze. It'll take a few years until the tree is strong enough.

These a few rare varieties that may be of your interest.

Poncho Avocado
Very cold hardy variety. Produces medium to large green fruit. It survived temperatures around 10F near San Antonio, Texas (Zone 8b). Mature trees can take temperatures down to 15F for short period of time without significant damage.

Anise Avocado
This avocado has strongly scented leaves that smell like Anise. Very rare variety. Fruit is of excellent quality, creamy and buttery.

Catalina Avocado
Catalina is a very nice mid-season pear-shaped fruit that is especially rich and creamy. It is an extremely popular variety in South Florida in the Cuban Community. The Story of this variety says...
...Catalina is an amazing avocado floated across from Cuba, 60 years ago just before Fidel Castro took over the Island Nation. Wise Cubans jumped into the ocean to escape the Castro regime and tossed in some favorite scions for us to enjoy here in the States. We owe a great debt to poor old Don Miguel Cruz de la Santa Maria Espinoza Sanchez Alvarez Jr. who sadly was lost at sea. His amazing scion wood, wrapped in cellophane and aluminum foil floated over, washing ashore on Miami Beach. His shiny little package was miraculously picked up on the shoreline and immediately grafted and cared for by keen-eyed avocado lovers in Miami...
So be sure to think about this story every time you eat a Catalina!

These three Avocados will provide you with fruit ripening during the whole warm season. See more information on avocado varieties and the most cold hardy cultivars.

Check out our full selection of avocado varieties. They are 15% OFF today!

Avocado Q & A

Sensation: Avocado 2.5 y.o seedling just bloomed!

Ed's Avocado seedling blooming at age 2.5 years old... Go figure!

Q: Can I plant a seed from a store bought avocado and expect it to bear fruit?

A: Avocados grown from seed do not always come true, meaning being the same as the avocado that produced the seed being planted. Also, avocados grown from seed will take upwards of 8 years to flower and bear fruit unless grown by Ed Jones and his witchcraft. Ed Jones, the Avocado Guy... Yes, he is also the Mango Guy, and the Booster Guy... We don't know how he does it. He grows the most beautiful fruit trees, many of them from seed and they all seem to flower within two years! (See his blogs about his Star Fruit, Olive trees, and video about Shaping Mango Trees). All we know for sure, he uses Sunshine Boosters for all his plant experiments.
As far as Avocado , we recommend a grafted variety, where a scion, or branch tip, of a known cultivar is grafted to good rootstock. These trees will usually flower right away and bear good amount of fruit within a couple of years of being planted in the ground.
It's a good chance now to get a good grafted Avocado on our special Happy Value Sale while supply lasts, for only $59.95.

Trimming and treating Adeniums in winter

Q: My desert rose below dropped leaves after I replanted it in a bigger pot. I noticed that one of the branches that had been pruned is black at the tip. Please let me know if the section of the branch that turned black needs to be cut. I also wasn't sure how often to water it since the leaves have all dropped. None of the other dessert roses have dropped their leaves but they are all younger plants. Any advice would be much appreciated.

A: Your plant looks healthy and vigorous overall. Dropping leaves after repotting, or shipping, especially at this time of the year, is normal in Adeniums. They are deciduous and stay leafless from Fall to Spring. Some individual specimens can go into dormancy sooner than others - all depends on conditions: temperature, light, exposure, etc. and individual plant's "clock".
The black spot on the cut branch may be a sign of a fungus as a result of excess water. You may carefully clean/rub it with a paper tower dipped in Hydrogen Peroxide (pharmacy grade). Then rinse with fresh water.
Keep the plant warm and in a dry spot. Once leaves are dropped, it doesn't need much water. Once a week watering is enough.

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.