Hernandia nymphaeifolia
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Hernandia nymphaeifolia

Sea hearse

Tier 1 Difficulty: easy Water: low Light: full_sun
Water every
7 days
Temperature
20–35 °C
Soil pH
5–6
Hardiness
Zone 10–10
Click count
63
Observations
31

Description

Source: leafsnap

Hernandia nymphaeifolia is a tropical tree species belonging to the Hernandiaceae family. Commonly known as the water poppy or water moonflower, this plant is distinguished by its aquatic nature and its resemblance to a poppy flower. It is native to Southeast Asia, including countries such as Thailand, Malaysia, and Indonesia. The tree can reach heights of up to 20 meters and features a straight trunk with smooth bark. Its large leaves are glossy green and oval-shaped, reminiscent of water lilies. The small, white flowers, which have five petals, bloom during the summer months. For centuries, indigenous communities have utilized Hernandia nymphaeifolia for its anti-inflammatory properties. Additionally, it is often used as an ornamental plant in gardens and ponds due to its appealing foliage. The plant thrives in wet soil conditions, typically found near rivers or ponds, but it can also grow well in well-drained soils with full sun exposure or partial shade. In conclusion, Hernandia nymphaeifolia is a visually appealing tropical tree species renowned for its aquatic nature and medicinal properties, making it a popular choice among indigenous communities across Southeast Asia.

Care Guide

💧 Water Every 7 days

The lantern tree is native to tropical regions and thrives with consistent moisture, although it can withstand short periods of dryness. It is best to water it every two weeks. Typically grown outdoors, the lantern tree flourishes in spacious environments with rainfall similar to its natural habitat.

Suggested frequency: Every 7 days
FAQ
How should I water my Lantern tree?

Watering your Lantern tree is flexible and can be done using various common tools such as watering cans, hoses, or cups. Regardless of the tool you choose, it's important to water the tree directly on the soil, making sure all areas are evenly moistened to provide sufficient water to the root system. Using filtered water is recommended to avoid harmful particles present in tap water. It's also beneficial to use water that is at or slightly above room temperature, as extreme temperatures can be shocking to the tree. However, the Lantern tree generally responds well to any type of water.

What should I do if I give my Lantern tree too much or too little water?

Outdoor plants, particularly new ones or seedlings, are often at risk of not being watered enough. It's important to remember to water them sufficiently for a few months until they're established. Once the roots are established, they can rely on rain most of the time. When your Lantern tree is in a pot, overwatering is more common. If you accidentally overwater your Lantern tree, you should take immediate action. Stop watering the plant and check its roots by removing it from the pot. If the roots don't show signs of rot, you can put the plant back in its pot. However, if there is rot, trim the affected roots and consider applying fungicide. Repot the Lantern tree in well-draining soil. In the case of underwatering, simply water the plant more often. It's usually an easy fix, as the leaves will droop and dry out but quickly recover with sufficient water. Make sure to adjust your watering schedule as soon as you notice underwatering.

How often do I need to water my Lantern tree?

Most outdoor plants can rely on rainfall for their water needs. However, if you live in an area with limited rainfall, you should water your plants every 2 weeks in the spring and fall. In the summer, when plants require more water, you'll need to water them more frequently. On the other hand, in the winter when plants grow slower and require less water, you should water them sparingly or not at all. If you have a young or newly planted Lantern tree, you should water it more often to help it establish and grow. For potted plants like the Lantern tree, there are two ways to determine how often to water. One way is to follow a set schedule, watering the plant once a week or every other week. However, this may not always be effective as it doesn't consider the specific conditions of your growing environment. Another approach is to check the soil moisture. Wait until the top two to four inches of soil, about ⅓ to ½ depth of the pots, have completely dried out before watering again. Keep in mind that during the summer, the watering frequency may need to increase as the plant's water needs are higher.

How much water does my Lantern tree require?

The watering needs of the Lantern tree may be surprising. Instead of requiring a large amount of water, the tree thrives when given about five to ten ounces of water if only a few inches of soil have dried since the last watering. You can also determine the water volume based on the moisture level of the soil. Take note of how many inches of soil have dried out between waterings. To ensure the Lantern tree receives sufficient moisture, water enough to dampen all the dry soil layers since the last watering. If over half of the soil has dried out, it is advisable to give more water. In such cases, continue watering until excess water drains from the pot's drainage holes. If the Lantern tree is situated in an area with ample outdoor rainfall, additional watering may not be necessary. For young or newly established trees, aim for 1-2 inches of rain per week. As the tree grows, it can depend entirely on rainwater except in situations of extreme heat and no rainfall for 2-3 weeks, where a full watering is recommended to prevent stress.

How do I know if I'm watering my Lantern tree enough?

Overwatering is a common issue for the Lantern tree, and there are certain signs to watch out for. When a Lantern tree is overwatered, you will notice yellowing leaves and the possibility of leaf drop. Additionally, overwatering can lead to the plant shrinking in size and even root rot. On the other hand, an underwatered Lantern tree will start to droop and may have brown or brittle leaves. Regardless of whether you see signs of overwatering or underwatering, it's important to take action and revive the health of your Lantern tree.

☀️ Light Full sun

The lantern tree grows best when exposed to full sunlight for most of the day, though it can tolerate moderately sunny conditions. Coming from very sun‑filled habitats, too little light can impair its health, while excessive sun can also be harmful.

Ideal: Full sun
FAQ
How much sunlight does the Lantern tree need to grow?

Tropical ornamental plants that thrive in full sun require at least 6 hours of direct sunlight each day. These plants are well-suited to areas with strong and direct sunlight, as they need this light to flourish. In their natural habitats, they tend to grow in open fields or along forest edges, where they can enjoy abundant sunlight all day long.

What happens if the Lantern tree doesn't get enough sunlight?

Tropical ornamental plants that need full sun may face issues if they don't receive enough sunlight. They might become leggy and weak, and their leaves could turn yellow or pale. Furthermore, they may stop producing flowers. Ultimately, if these plants continue to lack the required amount of direct sunlight, there is a possibility that they may die.

What will happen if the Lantern tree gets too much sunlight?

Tropical ornamental plants that thrive in full sun require ample direct sunlight, but excessive exposure to intense sunlight can harm them. Prolonged periods of direct sunlight can cause sunburned leaves or the development of unsightly brown spots. Additionally, if the soil dries out too rapidly in full sun, these plants may become dehydrated.

How can you keep the Lantern tree safe from too much sunlight?

To protect tropical ornamental plants that thrive in full sun, it's important to find a spot with ample direct sunlight but some shield from the intense midday heat. If you're growing these plants in containers, you can move them to a shadier area during the hottest hours to shield them from excessive sunlight. Another option is to offer shade using a shade cloth or umbrella during the peak heat of the day.

🌡️ Temperature 20–35°C

Lantern tree originates from habitats with temperatures between 68 and 95 °F (20 to 35 °C). It performs best in these conditions, showing optimal growth within that warmth range. Temperatures should be adjusted seasonally to replicate these ideal conditions.

Ideal temperature: 20–35°C
FAQ
What is the best temperature for the Lantern tree?

To help your tropical plants thrive, it's best to maintain a temperature range of 75℉ to 90℉ (25-32℃). While different species can tolerate temperatures outside this range, sticking within a few degrees of these limits will ensure optimal growth. However, there are extreme temperature limits to be aware of. Anything below 50℉ (10℃) or above 95℉ (35℃) can hinder growth and cause issues with the leaves and stems. Low temperatures are particularly damaging, as even a light frost can lead to the death of your tropical plants. In fact, cellular death can occur rapidly, with some species dying within 12 to 24 hours.

Does the Lantern tree need different temperatures for different stages of growth?

To ensure consistent growth and avoid any setbacks, it is important to maintain a stable temperature for the Lantern tree. Drastic changes in temperature can slow down its growth, regardless of its current phase. Therefore, it is recommended to keep the tree in a controlled environment. The optimal temperature range for the Lantern tree is between 75℉ and 90℉ (25-32℃). It is important to stay above the lower limit of 75℉ to ensure optimal growth. While temperatures exceeding 90℉ (32℃) are not ideal, the Lantern tree, being a tropical plant, can tolerate them to some extent. However, exposing the tree to temperatures below 50℉ (10℃), particularly 40℉ (5℃), can cause direct damage to this heat-loving species.

Does the Lantern tree require varying temperatures in different seasons?

The lantern tree is a low-maintenance plant because it does not require different temperatures for different seasons. The key to caring for it is to maintain an ideal temperature range, which is why it is recommended to keep this plant indoors. By doing so, you have control over the temperature regardless of the outdoor climate. In addition, proper lighting is crucial for tropical species like the lantern tree. These plants prefer a partial side level of sun exposure, meaning they should receive dappled or filtered light. Bright but indirect light is the best choice when growing the plants indoors. Too much direct sunlight can harm the leaves and limit the plant's growth potential.

What temperatures should you keep your Lantern tree at to keep it healthy?

Here are three tips to help you take care of your plants: 1. Keep your plants away from windows during colder months: Cold air can leak into your home through cracks in the windows, and any plants placed near them will be affected. Move tropical plants to an area with bright but indirect light, while avoiding potential drafts. 2. Watch out for dry patches, which may indicate too much sunlight or heat: If you notice white or scorched leaves, your plant may be getting too much heat or sunlight. This can lead to dehydration and hinder growth. Dry spots can spread and eventually cause your plants to die if left unaddressed. 3. Be cautious of frost: Colder temperatures and frost can damage plants by disrupting their water circulation. This can lead to a lack of moisture in the stems and leaves. Look out for signs of hydrosis (a water-soaked appearance) and if the issue persists, the plant may shrivel and turn dark brown or black, eventually leading to death.

How can I keep my Lantern tree at the right temperature?

To maintain the right temperature range for Lantern trees, it is important to consider the climate and humidity. Try keeping each species in a room with climate control, as this will help mimic its natural habitat. Monitoring the humidity levels is also crucial since it affects the temperature. To increase humidity, you can use a humidifier or lightly mist the leaves. If you plan to grow Lantern trees outside, it may be challenging to maintain the optimal temperature and humidity. In such cases, the best approach is to bring the plant indoors where you can have better control over the climate, allowing it to thrive.

💨 Humidity
Humidity:
🪴 Soil 5-6
Soil pH: 5-6
🌱 Fertilizer

The ideal time to fertilize a Lantern tree is in early spring when it breaks dormancy. This stimulates overall growth and supports flower development. Applying fertilizer improves the foliage, stems, and branches and encourages flowers that are larger, more vibrant, and longer-lasting. It also aids the movement of nutrients from the roots to the blooms and enhances the plant’s health and resistance to disease.

FAQ
Why do I have to use fertilizer on my Lantern tree?

Fertilization plays a vital role in promoting the overall health and well-being of a Lantern tree. A well-supplied source of energy and nutrients enables the tree to grow a lush foliage, supported by strong stems and branches. Beyond that, the flowers of the Lantern tree hold particular significance for gardeners, and fertilization comes to the rescue in this regard too. By providing the right type of fertilizer, the tree is able to produce large, vibrant, and long-lasting flowers. This is because the fertilizer aids in the efficient transfer of fuel from the roots, through the stems, and finally to the flowers. Moreover, proper fertilization safeguards the tree's general health, bolstering its ability to combat diseases.

When should I put fertilizer on my Lantern tree?

To ensure optimal growth and flower development of your Lantern tree, it is best to fertilize it during early spring when it emerges from its dormant phase and prepares to bloom. This initial feeding will provide the necessary energy for overall growth. However, it is not the only time you can fertilize the plant. A second feeding at the end of the season, during fall, can also be beneficial, although it doesn't need to be as substantial as the first. Some gardeners choose to fertilize the Lantern tree during planting, but this is not always required.

When is it a good idea to not put fertilizer on my Lantern tree?

During the winter, your Lantern tree, like many other plants, does not require fertilization. This is because it goes into a dormant phase where it doesn't need much energy from the soil to grow. Fertilizing during this time increases the risk of overfertilization. The best times to feed your Lantern tree are in early spring and fall. So, for most of the spring and summer, fertilizer is not necessary. If your plant is experiencing extremely hot or dry conditions, it's also advisable to hold off on fertilizing.

What kind of fertilizer should I use for my Lantern tree?

Using a general-purpose fertilizer with equal amounts of nitrogen, phosphorus, and potassium is generally acceptable. However, Lantern tree plants tend to thrive with a specific type of fertilizer. Nitrogen and phosphorus are the most crucial nutrients for Lantern trees, so the fertilizer should have higher levels of these compared to potassium. Ideally, a fertilizer with an N-P-K ratio of 10-10-8 or similar will work well. Additionally, it can be beneficial to use organic materials like compost for one of your yearly feedings. If you decide to use fertilizer, granular fertilizer is the most common choice for Lantern trees.

How do I make my Lantern tree grow better?

Fertilizing your Lantern tree is a simple task that any gardener can do, even with minimal experience. To use granular fertilizer, just sprinkle it onto the soil after moistening it with water. Alternatively, you can improve the soil for your Lantern tree by adding compost or manure. To do this, place the organic material on top of the soil and gently work it into the first few inches using a hand rake, taking care not to disturb the roots.

🪴 Pot & Repot
✂️ Pruning

The lantern tree is known for its large, heart-shaped leaves and distinctive lantern-shaped seeds. To maintain its shape and remove any dead branches, prune the tree during its dormancy period, from early to late winter. This practice enhances air circulation, prevents pests, and promotes healthy growth, thereby improving the tree's ornamental value.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Tree
Life Cycle
Perennial
Genus
Hernandia
Family
Hernandiaceae
Hardiness Zone
10
Mature Height
4.88 m to 21.95 m
Mature Spread
6.1 m to 17.98 m
Leaf Color
Dark Green
Leaf Type
Evergreen
Flower Color
White
Flower Size
0.51 cm to 0.76 cm
Bloom Time
Late spring, Summer, Early fall, Mid fall
Planting Time
Spring, Summer, Autumn
Harvest Time
Mid summer, Late summer, Fall, Early winter
Native Area
Sri Lanka, India, Malaysia, Philippines, Madagascar, Fiji, Kenya, Tanzania, China, Indonesia, Cambodia, Vietnam, Japan, Singapore, Thailand

Tags (5)

Common Names (1)

en Sea hearse