Gratiola viscidula, commonly known as Hedge Hyssop, is a native wildflower from North America that has gained popularity as an aquarium plant. This plant is relatively new to the aquatic hobby and is known for its distinctive 'thorny' appearance when submerged. It's a versatile plant that can adapt to being fully submerged for long periods, making it a valuable addition to aquariums.
Gratiola viscidula thrives under good lighting conditions and can be kept very low, almost carpeting, through regular trimming. This makes it suitable for fore or mid-ground positioning in an aquarium layout. It's a stem type plant that grows slowly, reaching a height of 3 - 10+ cm. Each stem is approximately 1-2 cm wide and can become over 10 cm tall, branching out and creating a dense appearance. The plant prefers a medium light demand of about 0.5 W/L and a medium CO2 need of 6-14 mg/L.
In its natural habitat, Hedge Hyssop is often found in wet, partially submerged areas such as pond and lake margins, and wetlands. It's a multi-stemmed and compact plant, forming dense mounds with glandular puberulent stems that give it a sticky feel when touched. The white tubular flowers with a yellow center are characteristic and bloom in summer and fall. This plant can be grown in neutral pH wet sites like bogs, water gardens, or along streams and ponds, preferring partial shade and consistently wet soils.
For aquarium enthusiasts, Gratiola viscidula is not only an aesthetic addition but also plays a role in absorbing ammonia and nitrogenous waste compounds, aiding in maintaining a healthy aquatic environment.
Disclaimer: Pictures are not the actual plants you will receive, but a sample representation. Unless specific, we don't guarantee aquatic plants will be free of pests, and pesticides, grow emerged, or submerge.
Scientific Name |
Gratiola Viscidula Pennell |
Common Name |
Hedge Hyssop / Short's Hedgehyssop / Viscid Hedgehyssop |
Type | Stem Plants |
Placement |
Midground / Background |
CO2 |
Not Required |
pH |
6.0 - 8.0 |
Growth Rates |
Medium |
Difficulty Level |
Beginner |
Nutrient Substrate |
Required |
Can it grow emerged? |
Yes |
Lighting Requirements |
Medium - High |
Return Policy: All sales are final
24 Hours Live Arrival Guarantee* - In a rare case of live stocks dead on arrival, we must be notified within 24 hours by the same day of delivery. Please take clear photos of the damaged product and send it to us within 24 hours. Live Arrival Guarantee will be void after 24 hours of delivery. All replacements are considered final and we will not replace the replacement.
Please be aware that our Live Arrival Guarantee is subject to certain conditions. Specifically, the guarantee will not be applicable in cases where the package is marked as 'invalid address', 'undeliverable' or is 'returned to sender.' This includes situations such as a vacant delivery address, a missing apartment number, or any other issues that prevent the postal service from delivering your package.
It is crucial to provide accurate and complete shipping information to ensure the successful delivery of your order and the applicability of the Live Arrival Guarantee.
Please keep in mind that Live Arrival Guarantee only guarantees that live stocks will be alive upon arrival. We cannot guarantee that you will continue to have success with them. Many factors, including the aquarium environment, water quality, nutrient, temperature, lighting, filter, and CO2 system, can contribute to the failure to grow live plants and live animals.
Even though our plants are very clean, but we can't guarantee they will be 100% pest-free because we cannot be responsible for your aquarium. Please use it at your own risk. We recommended all customers rinse the plants with clean water and quarantine them before use.
However, plants in tissue culture will be 100% free from pests, algae and never have been contacting with any aquarium.
Please review your state's regulations on restricted plants, as we are committed to not shipping plants that are restricted in your area. Do not release any plants into the wild or waterways, as this can harm local ecosystems by introducing invasive species.
Your cooperation in protecting the environment is appreciated. For continuously updated information, refer to the USDA State Noxious Weed list here.
Thank you for your responsible commitment to environmental preservation.
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