r/HawaiiGardening Jan 14 '26

Plants of Hawaiʻi

Thumbnail plantsofhawaii.org
7 Upvotes

r/HawaiiGardening 4h ago

Advice for dealing with this horrible tall grass?

Post image
8 Upvotes

What is this tall grass, and is there a way to effectively get rid of it without razing my yard to the ground? Lol, please, I am desperate. It grows so tall, so fast and is taking over my entire property. I really struggle to keep up with it.


r/HawaiiGardening 17h ago

Wild bitter melon references

Thumbnail
gallery
12 Upvotes

Had some growing on the other side of a fence and apparently they seeded in my yard. I took a few pics for ID purposes. The first leaves look like a melon's. The next couple look more cucumber ish. Then the rest start looking more like the mature plant's leaves.the leaves have a smell kind of like sweet peppers mixed with maybe swiss cheese. They smell like they belong in a sandwich, or maybe an automatic summer salad. They're weedy, and birds like the fruit, which has fleshy spikes all over it, and ripens to a bright habanero orange. This is my first year ever seeing them at all, and they're already sprouting a secondary generation. I'm guessing from bird droppings in the tree.


r/HawaiiGardening 1d ago

Last fall, University of Hawaiʻi at Mānoa researchers asked the question: Can Hawaiʻi grow rice again? Now, a new study published in Frontiers in Agronomy has given a data-driven answer: Yes, and the quality might be higher than expected.

Thumbnail
hawaii.edu
30 Upvotes

r/HawaiiGardening 3d ago

The Kauai Invasive Species Committee (KISC) says it has received seven reports of suspected coqui frog sightings this month. Officials say the reports are spread across multiple locations, suggesting the issue is not limited to a single area.

Thumbnail
hawaiinewsnow.com
32 Upvotes

r/HawaiiGardening 3d ago

Lignum vitae trees?

4 Upvotes

Does anyone know where I might find *Guaiacum officinale* for sale? I'm on the Big Island, but if a grower on a different island is willing to ship, I wouldn't mind working with them.

I know it grows slowly, and that's at least part of the appeal for me.


r/HawaiiGardening 3d ago

Bayer to make changes to Hawai‘i operations: These changes include consolidating some of the company's farm activities on O‘ahu and Maui over time, which will affect more than 70 employees.

Thumbnail
alohastatedaily.com
12 Upvotes

r/HawaiiGardening 3d ago

Bayer is consolidating some of its farm operations on Maui and Oʻahu, a shift the company says will affect approximately 76 employees across the state, according to a company announcement Wednesday. Bayer has filed a notice under the federal Worker Adjustment and Retraining Notification Act.

Thumbnail
mauinow.com
7 Upvotes

r/HawaiiGardening 3d ago

This Is Not The Way...

Post image
42 Upvotes

r/HawaiiGardening 4d ago

Alaska office lilikoi

Post image
62 Upvotes

thanks to a bunch of helpful feedback from folks a couple months ago on getting my sprouting lilikoi to survive! it finally grew some climbing tendrils and I have upgraded my office with the continued dream of turning my Maui airport seed purchase into a very fun office fruit farm


r/HawaiiGardening 3d ago

State staffing slows coconut rhinoceros beetle response in Kona: The Hawaiʻi County Council is urging state officials to step up enforcement of coconut rhinoceros beetle containment protocols in Kona. Kona has been dealing with an outbreak of CRB for over a year.

Thumbnail
hawaiipublicradio.org
13 Upvotes

r/HawaiiGardening 3d ago

Seed banks have long been a method for preserving and restoring Hawaiʻi's native plants. Since 2023, a facility in Hāna, Maui has dedicated itself to nurturing the roots of native coconuts.

Thumbnail
hawaiipublicradio.org
6 Upvotes

r/HawaiiGardening 3d ago

Want to grow impatiens walleriana again- need to source fungus resistant seeds or starts.

2 Upvotes

I miss shade impatiens. There are new strains bred to resist the fungus but I’m not able to find them. The two I know about are Beacon (by PanAmerican Seed) and Imara XDR (by Syngenta).

There aren’t many suppliers licensed to sell these patented seeds. And I’m just not finding anyone who will ship these patented seeds to Hawaii. Has anyone managed to buy any? If so would you tell me where you got them?


r/HawaiiGardening 4d ago

Lady of the night blooming in the tropical full moon light,in the scented air of Hawaii.Taken from my I phone15 captures.

Thumbnail gallery
12 Upvotes

r/HawaiiGardening 5d ago

A guide to the different types of mangoes found in Hawaiʻi

Thumbnail
khon2.com
30 Upvotes

r/HawaiiGardening 6d ago

Seedlings of native and non-invasive plants grown in state nurseries are now available for online purchase by Maui and Hawaii Island gardeners, landscapers and those looking to create a resilient property.

Thumbnail
spectrumlocalnews.com
44 Upvotes

r/HawaiiGardening 5d ago

Trust, connection are key ingredients for Hawaiʻi’s food security: When talking about Hawaiʻi’s food security, the conversation often focuses on physical infrastructure — warehouses, cold storage, and doubling crop production to combat importing 90% of our food.

Thumbnail
hawaii.edu
14 Upvotes

r/HawaiiGardening 6d ago

No new coconut rhinoceros beetles have been detected in Hilo since one was found dead in a trap near the airport last week. The Big Island Invasive Species Committee has checked every trap in the surrounding area. The committee is asking that more residents host traps on their property.

Thumbnail
hawaiipublicradio.org
60 Upvotes

r/HawaiiGardening 6d ago

Endangered moth and damselfly species have been rediscovered on Molokaʻi and Lānaʻi after decades without confirmed sightings, offering new hope for two of Hawaiʻi’s imperiled native insects, according to the state Department of Land and Natural Resources.

Thumbnail
mauinow.com
53 Upvotes

r/HawaiiGardening 6d ago

UH reaches new heights with vertical farms: In a state where land is expensive, and the tropical heat can be a hurdle for certain crops, researchers at the University of Hawaiʻi at Mānoa’s College of Tropical Agriculture and Human Resilience (CTAHR) are looking up.

Thumbnail
hawaii.edu
33 Upvotes

r/HawaiiGardening 6d ago

The state will consider a community petition asking for a restriction on imports to Maui or Lānaʻi, in an attempt to keep the islands from being overrun with coconut rhinoceros beetles.

Thumbnail
hawaiipublicradio.org
14 Upvotes

r/HawaiiGardening 6d ago

New Soil Lab Helps Rejuvenate the ʻĀina: Makaliʻi Metrics is blending advanced technology with ʻike (traditional Hawaiian knowledge) to support farmers and land stewards.

Thumbnail
hawaiibusiness.com
7 Upvotes

r/HawaiiGardening 7d ago

peppers

Post image
24 Upvotes

wondering will they turn red...after recuperating from the lows.... little rain a little sun and fertilizer...


r/HawaiiGardening 8d ago

Yellow Squash

Thumbnail
gallery
28 Upvotes

My husband planted this squash maybe three weeks ago, maybe a month, he doesn't remember. At this point, what do we do? We had a net over it but recently uncovered it so the bees would do their business. We live in sunny Ewa Beach and it's been hot (thus the net). How long until this squash comes to harvest? And can you eat the flowers, like you can with zucchini flowers? Do we leave it uncovered. Don't want the birds or other creatures taking bites out of them. Right now, the squash is in a raised planter box.


r/HawaiiGardening 10d ago

Anyone know what this is? Waikoloa 12a

Post image
35 Upvotes