/r/HawaiiGardening

Photograph via snooOG

Aloha and welcome to Hawai’i Gardening. A subreddit for anyone interested in gardening in Hawai’i, those that do, and others in similar climate zones from anywhere worldwide.

A place to ask questions, post pictures, discuss techniques, share advice or even seeds, and assist each other in our unique gardening endeavors.

Aloha and welcome to Hawai’i Gardening. This is a subreddit for anyone interested in gardening in Hawai’i, those that do, and others in similar climate zones worldwide.

The intention is for this subreddit to grow into a friendly place for asking questions, sharing helpful information and advice about gardening in subtropical & tropical climates, posting pictures of gardens, fruits, flowers and anything you grow.

Perhaps you're looking for a book or specific printed plant resource guide? Feel free to post an inquiry.

You are also welcome to post relevant links related to gardening and agriculture in Hawai’i, the subtropics and the tropics. Gardening events and plant sale posts included.

SOME HELPFUL LINKS-

Rules:

If you sell a product and you'd like to make a post about it here, please message the moderators first with a brief introduction about what your product is to receive permission before posting. This also includes posting websites that you run/ blogs selling your products/ subreddits you'd like to promote. Soliciting monetary funds for anything will not be allowed without moderators vetting the project and confirming its legitimacy.

Anything related to transgenic crops, GMO's, and bioengineering will be reviewed as needed to receive approval.

Gardening Subs

Hawaii Subs

/r/HawaiiGardening

9,068 Subscribers

2

Can I replant a broken papaya tree?

My papaya tree snapped off near the top during the recent wind. I think the ten feet of trunk left behind may be done for, but the top five feet still has the crown of leaves intact. If I replant the top of the tree, will it take root and continue to grow?

3 Comments
2025/02/01
20:30 UTC

8

'ōhi'a 'ai water question

Is rainfall in Mililani enough for 'ōhi'a 'ai without irrigation? We have a rainy reputation but it can get kind of dry in the summer.

3 Comments
2025/01/24
04:02 UTC

16

Garden beds on ground? Ratlungworm?

Aloha,

I’ve been living in east Hawai’i for about 2 years now, relocated for work. I have been wanting to start a garden/homested but have been at a standstill after a well meaning neighbor sent  me down the rat lungworm rabbit hole.

I understand the basics, ie avoid eating locally grown leafy greens (unless doing so indoors/hydroponic setup etc). Copper bands, sluggo ect, maintaining soil PH/acidity ect. 

My main question is can I do ground garden beds for other plants like raspberries, tomatoes or cucumbers? Or is it still recommended to grow them in raised beds? I’m from the midwest originally so grew up with the ease of growing plants straight into soil but wouldn’t want to risk rat lungworm. 

I do have a few tomato plants and raspberries plants that have just been growing wild but I’m not sure whether its “safe” to consume.  Dumped a few tomatoes in our chicken coop last year, moved our coop this year, and noticed there’s a bunch of ripening tomatoes where it used to be. Is there any risk of tiny slugs having gotten inside the actual fruit/vegetable?

Would love to hear what local gardeners do for their setup! Mahalo

21 Comments
2025/01/23
20:23 UTC

18

Please help to identify this tree.

Also, are the orange pods the seeds?

8 Comments
2025/01/23
00:56 UTC

10

Help Identifying Tree

Can someone please help me by identifying this tree 🌳 ?

13 Comments
2025/01/22
04:39 UTC

4

Ala Wai planting

Hi everyone,

I am working on redesigning the Ala Wai Canal and golf course for my senior project in school. Does anyone have ideas for planting in that area?

5 Comments
2025/01/21
19:24 UTC

5

CRB treatment?

I just found a few CRB beetles on my coco trees on North Shore. I got a pesticide sprayer but I don't know what to use. Anyone have any suggestions on a mix of pesticides or oils to spray that will kill the CRB and not make the coconuts un-edible?

21 Comments
2025/01/21
00:20 UTC

15

Visiting Hilo for 3 weeks

Hello! I’m a gardener in the Philadelphia area of Pa, coming to WWOOF in Hilo from Jan 21st to Feb 25th. (Latter 2 weeks in waip’io).

I would love to tour some private gardens during this time, or find someone who is taking hikes I could join. Looking to botanize and be inspired by the diversity on the island!

I appreciate your attention, Noah

7 Comments
2025/01/19
02:39 UTC

2

pineapple plant producing too many pops

i gave few 3 year old pineapple plants and some produce few pups, some do not produce any. But i have one that is like pups factory. i got 6. Is it a sign of something? As far as getting fruit soon? None flowered so far/

https://preview.redd.it/z26sj68y6vde1.jpg?width=3024&format=pjpg&auto=webp&s=670465a1b7bbcc230ec77edca2f7ad3484f96c6f

https://preview.redd.it/g1g4i88y6vde1.jpg?width=3024&format=pjpg&auto=webp&s=9b53168b6eb10ebe140c886ea65bd894d340b822

https://preview.redd.it/os7z978y6vde1.jpg?width=3024&format=pjpg&auto=webp&s=de9d2f8119a25736a808b80123c59ec228dd12d8

PUP is growing from soil

12 Comments
2025/01/18
23:40 UTC

6

Help with a herb garden

My brother helped me prep this garden bed in our front driveway and I want to make an herb garden because it’s easy access to the front door. Any recommendations on what to add or how to design it? The curved part is south facing and gets plenty of sunlight throughout the day. There is some irrigation that I can custom use after, I’m just stuck on what to add and how to design it. And what kind of ground cover to use. Thanks for any help!!!

3 Comments
2025/01/18
05:13 UTC

6

How long does it take kalo (taro) to produce cormels?

I know it takes 9 months for a kalo holiday to produce a full sized corm, but how long does it take a plant with a full size corm to produce a cormel? Could I leave the corm, just harvest cormels and get another harvest of cormels in less time than it would take the kalo to regrow the corm had I hatvested it?

1 Comment
2025/01/17
07:55 UTC

7

Maile Plant for Sale?

Aloha,

I am wondering is anyone knows where to get maile on the big island?

I would like to start growing in my garden! My friend is getting married in a year and a half and asked if I can make some lei, I wanna make maile for them but I can't seem to find a place that sells a plant or even seeds so I can start growing...

Mahalo for any suggestions!

3 Comments
2025/01/17
01:43 UTC

30

Is there a way to keep papaya trees short?

14 Comments
2025/01/15
05:56 UTC

7

Dead limbs on young dwarf trees

We recently bought young trees (lime, avocado, mango) and then went to mainland for 12 days over winter break 🤦🏻‍♀️ we had someone water for us but came back to the trees with all dead leaves sadly and I’m thinking the whole limbs are dead. The trunk still looks green and alive when I scrape some bark off. But now I’m wondering if can/how to save? How can I be sure the limbs are dead and should I cut them off? Any help is appreciated mahalo

1 Comment
2025/01/15
03:40 UTC

3

what are your biggest challenges with gardening?

I’m an agricultural student and was curious about the challenges that affect gardening here in Hawaii!

I was curious if the strictness of Hawaii Dept of Agriculture has any impact on access to seeds.

View Poll

10 Comments
2025/01/13
20:37 UTC

7

Best avocado variety?

And any idea where I could get a starter tree on Oahu?

6 Comments
2025/01/12
20:25 UTC

16

Pahoa, BI, Sunday - Closing the nutrient cycle: Using urine & humanure - class, tour, plants & cuttings

Pahoa Urban Food Forest (PUFF) hosts events the second Sunday of each month, exploring various aspects of permaculture and living sustainably with the land. Each event includes a discussion, a tour of our developing food forest & our perennial edibles, and free keiki of useful plants.

This month: Turn "waste" into value! Urine is liquid gold for plants, and safe to use with a few simple precautions. Humanure needs more care in treatment, but can also safely improve soil. We'll discuss strategies for responsibly returning nutrients to the land, via techniques including direct deposit, thermophilic composting, moldering, and using vermifilters or biodigesters.

DAY: Sunday, January 12
DISCUSSION: 11 AM til noon: Trees with edible leaves
TOUR: noon til 1, with time to chat or wander more afterwards.
PLANT GIVEAWAY: 1 PM
WHERE: Pahoa Urban Food Forest (PUFF), at Living Planet Learning Center between Habitat Tattoo and the County Council building. (The building doesn't have any identifying signs yet.) Walk through the side gate to find us.
ADDRESS: 15-2881 Pahoa Village Rd, Pahoa
PARK: Across the street in the parking lot next to NAPA Auto Parts.
COST: Suggested $15 donation in time/cash/materials/plant keiki

ABOUT LPLC: https://livingplanetalliance.org
MARK YOUR CALENDAR: Next month, February 9 - A celebration of air potatoes

We hold regular work parties. If you'd like to learn hands-on, get in touch to find out our days and times!

We'll share seeds and starts of several species, including:

Cacao - Theobroma cacao
Canary nut - Canarium indicum - similar to macadamia in tree form, and nut use
Paradise nut - Lecythis zabucajo - large tree, related to Brazil nut
Posh-te - Annona scleroderma - fruit tree related to cherimoya and sugar apple, does well in windward lowland Hawai'i
Cuban fiberless soursop - Annona muricata
Peach palm - Bactris gasipaes
Pigeon pea seed - Cajanus cajan
Inca nut / sacha inchi- Plukenetia volubilis
Vanilla vine
Pepper vine - Piper nigrum
Uhi (yam) - Dioscorea alata - vigorous vine, staple root crop
taro - Colocasia esculenta
belemebe - Xanthosoma brasiliense - greens like taro without the need for prolonged cooking
Bele AKA edible hibiscus - Abelmoschus manihot
Chaya - Cnidoscolus chayamansa
Cassava - Manihot esculenta
Longevity spinach - Gynura procumbens
Katuk - Sauropus androogynus
Chipilin - *Crotalaria longirostrata(
Vietnamese coriander - Persicaria odorata
...and more...

Please share this event info with others who might be interested. Hope you can join us for any or all of it!

0 Comments
2025/01/10
21:19 UTC

6

Aloha. Anyone have, or seen, nice Modern clean looking landscaping here in Hawaii? Maybe with fruit trees & garden? Please share pics here.

Doesn’t have to have fruit tree or garden but would love to see modern landscape ideas and maybe hillside landscape ideas. When I say modern and clean I mean modern and sleek, not all jungle like. Basically something that would suit a very modern, minimalist house (even though my house is not modern :). I’m more just wanting to see photos in all Hawaii climates of landscaping like this. But if you need to know my climate is lots of sun, medium humidity outside, and a little rain once in a while. (It seems it rains way less than it used to though). (Spot is bottom of Wailuku Heights, Maui,). Mahalo

13 Comments
2025/01/10
20:07 UTC

54

Someone tell me what to do with these bananas

These seem tiny. But they've been tiny for maybe 3 weeks now. Should I just chop them down now? I was gonna wait till I saw some ripped but maybe the rip ones are just being eaten or something. I have no idea what I'm doing. Advice please.

26 Comments
2025/01/10
19:16 UTC

54

Taro needs more hawaii farmers

13 Comments
2025/01/09
07:05 UTC

9

Plant recommendations?

Looking for plant recommendations for this corner lot. In need of something shade tolerant, shallow rooted, and can deter cats from using this corner as their litter box 🤨 Mahalo!

6 Comments
2025/01/06
21:46 UTC

14

Usually ginger isn't this sad.. what happened

7 Comments
2025/01/05
22:04 UTC

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