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91
Tropical Fruit Buy, Sell & Trade / Re: New giant purple passion fruit for trade
« Last post by wonderfruit on January 20, 2019, 06:43:00 PM »




This is the second fruit as big as the first one. An a couple others slightly smaller
92
Tropical Fruit Discussion / Re: Dot is blowing up with blooms!
« Last post by johnb51 on January 20, 2019, 06:41:03 PM »
Iím jealous. I love Dot.
Ditto.  Dot's a great mango!
93
Hi all!  So, the project is really starting to get a lot of public attention here locally, and there's a lot going on!  :)   One thing I'm working on at the moment is "concept layouts", which we can use for cost estimation (final plant layouts won't occur until the architectural design is final). Here's one of them (just the canopy layer, not including lower layers), and for a mature dome (not how it'd initially be populated, which would be predominantly very-fast-growing plants and vines):



Here's a rough lateral cross section of the dome (this is just one of three domes, the mid-sized one; this one is for tropicals / ultratropicals):



The question I have is... what do you think about the sizes and spacings of the areas I've allocated for the canopy species in this concept layout? Are there any good spots that can be trimmed back (I'd like to "push back" plants from the south side to allocate more "full sun" area for smaller species).  Anything that needs to be bigger? The goal is "just big enough to be reasonably productive relative to how much space they take up". The smaller we can keep things, the more diversity we can have.  But there's no point, of course, keeping something so small that it can hardly produce anything.

I'll reiterate that this is just a concept layout, and there's a number of things that fall into the "unlikely" category - for just a random example, L. zabucayo would need to be purchased as a tree (not seeds) because it takes a decade to start producing, and would likely need to have at least one graft to be fertile... so "not likely".  On the other hand, the budget on this project is the sort of thing one can only dream of, so....  :)  It'll be interesting to see what we ultimately can accomplish - but there obviously will be long lists of alternatives for every plant.  At this point, though?  Just "concept layouts".

Random comments:

 * Midwinter illumination in this dome would be about 400kW of (predominantly) LEDs, and emulate a ~12h day, incl. sunrise / sunset.
 * Most of the year, the sun takes rather low angles.  Even in midsummer, it doesn't go fully overhead.  On the other hand, in midsummer the sun even comes from the north; it circles around you.  But basically, south-side and central canopy species can be considered "full sun", while north-side canopy species should be considered "half sun".  Left side is also half sun, right side around 3/4ths sun.
 * Temperatures and humidities can vary by location; in laying this out, the right-hand side was treated as more humid than the left (perhaps 85% or so). There will be misting events and day/night cycles.
 * The center is largely (but not entirely) a water feature.
 * Plants grow directly into the ground, although it'll be amended as desired. Aeration pipes may be used in the ground to increase root oxygen levels.
 * Plants will be pruned. Care is being given in design to canopy accessibility.
 * Plants were selected from my list of "(potentially) very tall, humidity-loving plants"
 * M. flexuosa is there twice because even in ideal situation you can't get fruit from just one. Excepting E. oleracea, the other palms are just there for sap (incl. M. sagu), although they variously offer other uses.
 * F. religiosa is the only one not intended for food purposes; we want a meditation area. If it's ultimately selected, we'll try to (where possible) get ahold of A) one descended directly from the original Bodhi Tree, and/or B) one that we can acquire at a rather large starting size (several meters tall). Since F. religiosa doesn't produce, it's okay to let it get overgrown by other plants once it reaches a size "of significance".  We'll be doing the "let its roots dry out for part of the day" trick to encourage aerial root growth.
 * Plant goals in general are varied, including taste, health, appearance, scent, utility, unusual experiences, etc etc.

Thoughts?
94
Tropical Fruit Discussion / Re: Guava too much sun?
« Last post by FMfruitforest on January 20, 2019, 05:48:18 PM »
I have some in full florida sun no problem but arizona sun especially in summer may be too much. The tree will tell you its getting too much sun by curling leaves upward.
95
Tropical Fruit Discussion / brown spots on avocado leaves
« Last post by sttmike on January 20, 2019, 05:29:17 PM »




the leaves on my avocados are developing brown spots on the top surface with some form of brownish, blackish mites? on the underside.
i've seen this on avocado trees before and they seem to survive, but one of mine (a 4' tall, one year old pollack) has now lost most of its leaves.
i've started spraying neem oil and cutting off some of the leaves that are affected.
appreciate any suggestions for how to manage.

best,

mike
96
Tropical Fruit Discussion / Guava too much sun?
« Last post by Classy on January 20, 2019, 05:24:51 PM »
How do I know if my tropic pink guava is getting too much sun?
97
Citrus General Discussion / Re: Citrus inodora
« Last post by druss on January 20, 2019, 05:12:18 PM »
Nope its from the other side of the country  in Qld, not sure how big the fruit will get  originally it was on its own roots, im guessing cutting grown,it did nothing for 5 years then entually it started to decline, out of fear of losing it I grafted a couple of scions to a carrizo rootstock I had. 18 months later its doing great. Yes I am putting a few of my bigger plants in totes, others are going into 1/2 blue barrels. These are cheaper than 100l and 300l pots. I also have a bobcat to move them with and a 2.4m high door on the poly tunnel.
98
Tropical Fruit Buy, Sell & Trade / Re: Low Chill Stone fruits
« Last post by skhan on January 20, 2019, 05:11:07 PM »
Anything around 100 chill hours?
99
Tropical Fruit Discussion / Re: GEM avocado in Los Angeles area?
« Last post by Tintn00 on January 20, 2019, 03:34:41 PM »
What a great forum!

If I have space for two avocado trees ~12 feet in height, do you recommend I buy two GEM trees or one GEM and a second variety? I live in the Los Angeles area too. I'm wary of pruning a 25 ft tree down to 12 ft though.

Thanks!
100
Tropical Fruit Discussion / Re: Grafted/air layered-height
« Last post by edric on January 20, 2019, 02:43:28 PM »
Thank you so much Jako, that's great, now if you guys here on this forum have any questions about Palms, check out the encyclopedia of Palms that I spent the last 10 years writing, Palmpedia, here's the link, thanks again, Ed

http://www.palmpedia.net/wiki/Category:PALM_GENERA
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