Healthy Plants: Q&A from Mr Booster

How to grow a happy Red Jade Vine?

Q: My Red Jade Vine has the leaf tips turning brown. I water this plant four times a week and I am using a half a teaspoon of miracle grow bloom booster 15-30-15 per 2 gallons, every two weeks. In the beginning I had to water this plant off city water in South Fort Myers. Over the last two months I picked up a dechlorinator buggy plus threw that on my hose and I've been watering it with that but it didn't seem to make a difference. I put this plant in the ground last September. It has three shoots that run into the top of the tree, so it is growing but leaves seem to drop off down low at the base of the vine and the brown tipping running into the top of the plant. But not the newest shoot its leaves are solid green all the way at the top. Thanks for any advice.

A: Mucuna benettii - Red Jade vine - is not the easiest plant to grow, and we are glad your vine is growing well. For those who love this plant but not ready to face all challenges, we recommend its cousin - Camptosema grandiflora - Dwarf Red Jade Vine, which is much hardier and easier plant.
We looked at the photos and these are our thoughts.

1) The top of the plant with green fresh leaves definitely indicates that the plant is generally healthy and vigorous.
2) Dry tips of the old leaves may indicate excess salts in soil, in combination with the summer heat that it went through. Based on your feeding program description, that fertilizer may create a problem. Water soluble traditional fertilizers are EDTA-chelated which often causes nutrients lock up in soil and leaf drop. Try to stay away from that fertilizer for a month and let the rains and/or irrigation water flush the soil for a couple of weeks.
3) Red Jade vine is a very sensitive species. Normally, during hot season it is safe to use traditional fertilizers, especially slow-release granulated. However, with this plant we recommend you to switch to more delicate formula and use only liquid fertilizer.
SUNSHINE Megaflor - Bloom Nutrition Booster will be the best. It is safe to use it as frequent as with every watering! It is amino-acid based, and will be totally consumed by the plant without nutrient lockup.
4) Another cause of dry leaf tips may be micro-element deficiency.
Megaflor booster already has all necessary micro-nutrients in it, plus you may apply some extra: SUNSHINE Superfood.
5) You may continue using regular water for watering (including city water) as long as you use amino-acid based plant food and supplements: they improve soil acidity (what tropical plants like is acidic soil, and Florida soils are alkaline). Additionally, to improve soil acidity which can be critical for this Mucuna species, you may add 1" layer of pure peat moss on top of the soil around the plant. Please keep us in loop how the plant is doing. It is pretty rare species in cultivation and we will be happy to help you to keep it thriving.

Flowering vine around garage trellis

Q: I want to grow flowering vines up and around my garage; however I want to make sure whatever I put will grow long enough to make it all the way around the top. I attached photo of my garage and where I mounted the bolts for the trellis. What plants do you recommend for doing something like this that will eventually grow long enough to complete the arch over the garage? Right now I have mandevillas there but I know they aren't the right species. I know bougainvilleas will work, but I was hoping to do something less thorny since it's near the walkway.

A: There are several vines that can fit your project. These are just a few suggestions:

1017 Aristolochia gigantea - Giant Pelican Flower
Camptosema grandiflora - Dwarf Red Jade Vine
Cissus rotundifolia - Arabian Wax Leaf (very fast glowing)
Clerodendrum speciosum - Red Bleeding Heart
Clitoria ternatea - Blue Butterfly Pea (very fast glowing)
Jasminum sambac Maid of Orleans
Senecio confusus - Mexican flame vine
Stictocardia beraviensis - Hawaiian Sunset Bell (very fast glowing)
Thunbergia alata var. aurea Sunlady
Thunbergia laurifolia - Blue Sky vine
Trachelospermum jasminoides - Confederate Jasmine
Urechites lutea - Yellow Mandevilla

Check out full list of flowering vines

Photo above: Clerodendrum speciosum - Red Bleeding Heart

Photo above: Senecio confusus - Mexican flame vine

Photo above: Clitoria ternatea - Blue Butterfly Pea

Photo above: Thunbergia laurifolia - Blue Sky vine

Impossibly exotic Chalice Vine

By Onika Amell, our flower specialist

Q: I live on Sanibel Island, Florida and I'm looking for an exotic vine to cover the side of my house. A friend suggested Chalice vine. What can you tell me about it and will it tolerate the salty soil and salt spray of the island?

A: Chalice vine, or Cup of Gold - Solandra maxima - is a large, woody, scrambling tropical vine with huge, cup-shaped flowers. Variety Variegata has also amazing cream and green variegated foliage. The flowers are fragrant, especially in the evenings, with a lovely coconut-like aroma. This unusual vine will give you intermittent waves of large, wide flaring golden trumpets.
Even when not in flower, it is beautiful as new growth is bright and purple-bronze in color. It has a large and loose spreading habit. As this vine ages, flowers will appear along the entire length of branches off the main vine. So, just think about it - up to 100 feet vine and you will have about 500 flowers at the same time! They are very fast growing and usually bloom from February until May. Plant them... Sit back and wait... Four months of heaven!
They are great for seaside gardens as they are very tolerant of salt spray and salty soils. Will, in fact, thrive in most any well-drained soil.
Give it a large, sturdy pergola or trellis, or train it to grow up the side of a house where it will spill down over windows and doorways to take your breath away... Chalice vine is impossibly exotic!

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