Prosopis glandulosa — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Prosopis glandulosa

Prosopis Glandulosa

Updated · 400 observations
ON THIS PLANT

Prosopis glandulosa, commonly known as honey mesquite, is a species of small to medium-sized, thorny shrub or tree in the legume family (Fabaceae).

A note from PlantMom

Honey mesquite is fairly resistant to disease and typically isn't susceptible to many ailments. In terms of care, this plant is fairly low-maintenance. When grown outdoors it needs little water, and larger specimens usually do not require pruning. However, smaller plants should be pruned after they finish blooming. Honey mesquite is suitable for anyone with an outdoor area, such as a garden or deck, and does not demand much gardening experience.

— PlantMom
CARE GUIDE

How to keep Prosopis Glandulosa.

Light

Honey mesquite does best with prolonged sunlight, though it can tolerate spots with partial sun. In its native range, honey mesquite mainly grows in sunny habitats. Too much or too little sunlight can harm its health and growth, so keeping a balance is important.

Water

Honey mesquite is well-suited to arid regions due to its high drought tolerance and deep root systems. To mimic its natural environment, it should be watered every 1-2 weeks. This plant thrives outdoors in full sunlight and requires well-draining soil to prevent root rot, which showcases its adaptability to dry conditions.

Humidity

This plant prefers dry conditions, so don't mist it. However, watering it less often can also thrive in higher humidity.

Temperature

The honey mesquite thrives in temperatures between 59 and 95 ℉ (15 and 35 ℃). This species is native to regions that have hot daytime temperatures and cooler nights. During summer it can endure high heat but needs proper watering. In winter it tolerates some frost, though very cold temperatures can harm its growth.

Fertilizer

Fertilize your Honey mesquite in early spring to encourage healthy growth. Regular feeding improves overall plant health, producing vigorous growth, increased hardiness in difficult conditions, and enhanced resistance to pests and diseases. Keep a consistent fertilization schedule for your Honey mesquite to ensure foliage that is vibrant, deeply colored, and lush in appearance.

Pruning

Honey mesquite is a drought-tolerant shrub or tree characterized by its thorns, feathery leaves, and fragrant yellow flowers. To encourage growth and improve air circulation, prune the plant in early spring by removing any dead or crossing branches. Make sure to use sharp tools for clean cuts, but avoid excessive pruning to ensure the plant remains healthy.

CHARACTERISTICS

Botanical profile.

Plant Type
Tree, Shrub
Life Cycle
Perennial
Genus
Prosopis
Family
Fabaceae
Hardiness Zone
7-9
Mature Height
7.62 m to 10.67 m
Mature Spread
7.62 m to 10.36 m
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Yellow
Flower Size
5.08 cm to 15.24 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Autumn
Harvest Time
Mid summer, Late summer
Native Area
Mexico
ALSO KNOWN AS

Other names.

en Honey mesquite en Mesquite
FREQUENTLY ASKED

Reader questions.

How should I water my Honey mesquite tree in the best way?

To promote excellent root development, consider placing a garden hose at the base of your plants, avoiding direct spraying of the leaves. If the plants are outdoors and exposed to direct sunlight, the leaves will require more watering. For moistening the roots, you can use bubblers for each plant or soaker hoses that cover the entire garden or bed. When adding or removing plants, these hoses can help push the roots deeper. Remember to drain any excess water and wait for the soil to dry before watering again. Watering at ground level is important to prevent diseases. On a sunny day, it may be helpful to spray the entire bush with water. Whether your plants are potted or in-ground, keep in mind that Honey mesquite prefers deep watering rather than just a light sprinkling.

Why should I put fertilizer on my Honey mesquite tree?

To ensure your Honey mesquite plant is healthy and resilient, regardless of the type you have, regular fertilization is crucial. By providing the proper nutrients, your plant will experience stronger growth and increased resistance to harsh conditions, diseases, and pests. Keeping the foliage of your Honey mesquite intact is important as it adds to its attractiveness. Therefore, developing and consistently following a fertilization schedule specific to your Honey mesquite will result in lush, vibrantly-colored leaves.

What are the sunlight requirements for honey mesquite?

Honey mesquite requires full sun for optimal growth, which means it thrives in conditions where it can receive more than 6 hours of direct sunlight daily. However, it can also tolerate partial sun, making do with about 3-6 hours of sunlight. It's crucial to watch how sunlight moves through your garden to choose spots that provide a perfect balance of light and shade, ensuring the plants' well-being. Honey mesquite is native to sun-drenched habitats, and though it prefers sustained exposure to sunlight, a balance is essential to prevent over or underexposure, which could negatively affect its health and growth.

What are the optimal temperature conditions for Honey Mesquite?

Honey Mesquite (Prosopis glandulosa) thrives in temperature ranges from 59 to 95°F (15 to 35°C), being native to regions that experience high temperatures during the day and cooler temperatures at night. While it can resist quite high temperatures during summer with adequate watering, it is also capable of tolerating some frost during winter. Despite its strong cold resistance, extreme cold can impact its growth negatively. When winter temperatures are expected to drop below its growth limit, precautions such as wrapping the trunk and branches with insulating materials are recommended, along with ample watering before the first freeze to keep the soil moist and prevent drought stress.

What do I need to do if I give Honey mesquite tree too much or too little water?

An overwatered Honey mesquite can show signs of yellowing, dropping leaves, and wilting. A dull and unhealthy appearance, along with mushy stems, may also be observed. It is important to adjust your watering schedule when these signs begin to appear. Wilting can also indicate under watering, with leaves becoming crispy and dry. In such cases, check the soil for dryness and provide a full watering as needed. Although sufficient water will help the Honey mesquite recover, the plant may still exhibit dryness and yellowing leaves due to damage to the root system. Once it returns to normal, the yellowing of leaves will cease. When caring for an indoor Honey mesquite, always monitor moisture levels and avoid overwatering. Look for black spots, as they indicate the need for soil to dry out for a few days. Overwatering can lead to root rot, so if you observe discolored and slimy roots, consider transferring the plant to a different pot. It is important to prevent root rot and avoid excessively wet soil. When planting a Honey mesquite outdoors, dig a bit deeper and if the soil feels overly dry, it may indicate under watering. Adequate watering is necessary to aid in the plant's recovery.

When should I fertilize my Honey mesquite tree?

To keep your Honey mesquite healthy and promote growth, fertilize it for the first time in late winter or early spring. This will give it the necessary nutrients to grow well once the weather warms up. If you live in a warm climate, it can be helpful to fertilize again in early fall. This not only adds nutrients for the next growing season but also makes the plant more resilient to winter cold, reducing the chances of foliage damage. Fertilizing earlier in fall will allow new branches enough time to grow and withstand the cold winter.

How does insufficient sunlight affect honey mesquite, and what can be done?

Insufficient sunlight affects the health and growth of honey mesquite, leading to symptoms such as small new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, chlorosis, sunscald, leaf curling, wilting, and leaf scorching. Solutions include gradually moving plants to sunnier locations to receive at least 6 hours of direct sunlight daily, using south-facing windows, and for larger or non-movable plants, using artificial light sources, such as desk or ceiling lamps for at least 8 hours daily. Outdoor plants should be moved to sunnier spots gradually to avoid sunburn. Removing obstructions like trees that block sunlight or transplanting to a brighter location might be necessary.

How should Honey Mesquite be cared for in low and high temperature conditions?

In conditions of low temperature, Honey Mesquite should be kept above its minimum tolerable growing temperature. If temperatures fall below its growth limit, the plant may not exhibit immediate damage in winter, but branches can become brittle and may fail to produce new shoots by spring. Pruning dead branches that don't produce new leaves in the spring is advisable. In high temperatures, especially above its maximum suitable growing temperature, the plant's leaves may lighten, tips can become dry, and the risk of sunburn increases. To mitigate this, trim sunburned areas, provide shade during peak sunlight hours, and ensure the soil remains moist with watering during cooler times of the day.

How often do I need to water my Honey mesquite?

The Honey mesquite prefers deep and infrequent watering, especially in pots where soil dries out faster. It's best to water them with a gallon of water each time. In cold regions, water every 3 to 5 days. Water early in the morning when the soil is dry, both indoors and outdoors. Check the soil moisture by feeling the top 2-3 inches. If it is dry, give the plant a thorough watering. On hot days, check the soil moisture daily as the heat can quickly dry it out. If you have a garden, irrigation is necessary. In hot climates, water once a week when the top 2 to 3 inches of soil is too dry. Be mindful of rainfall and avoid overwatering to prevent root rot. During spring and fall, when the Honey mesquite grows, add mulch 3 to 4 inches deep to conserve water when planted outdoors. Sandy soil requires more frequent watering, while clay soil requires less watering. You can mark the calendar to keep track of watering dates and watch for drooping leaves as a sign that watering may be needed.

When is it not a good idea to put fertilizer on my Honey mesquite plant?

There are certain times of the year when it's best to avoid fertilizing your Honey mesquite. The first time is in the early and mid-winter months when the plant is dormant and doesn't require any feeding. It's also not recommended to fertilize during late spring and summer as the weather tends to be hotter and drier, which can negatively affect the plant's response to fertilization. To prevent any problems, it's best to stick to a fertilization schedule that focuses on early spring and early fall.

What is the importance of using artificial lighting for indoor honey mesquite plants?

Artificial lighting is crucial for honey mesquite plants kept indoors, especially when natural sunlight is insufficient, like in winter or less sunny spaces. It promotes faster, healthier growth by providing adequate lighting, essential for these plants. LED lights are recommended because they can be customized to provide specific wavelengths needed for optimal growth. Full sun plants require 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants 10-20W/sq ft. Placement of the light source should be 12-36 inches above the plant to mimic natural sunlight, with an 8-12 hours duration per day to match natural daylight hours for the plant species.

How much water should I give my Honey mesquite?

The Honey mesquite plant needs about a gallon of water on a regular schedule. For potted plants, water them deeply until you see water dripping from the bottom of the pot. Wait for the soil to dry before watering again. You can use a water calculator or moisture meter to track the amount of water you give the plant each week. During the flowering period, provide plenty of water but allow the moisture to evaporate to prevent root rot. If planted outdoors with sufficient rainfall, the Honey mesquite may not need extra watering. When it's young or newly planted, make sure it receives 1-2 inches of rain per week. Once it's established, it can rely on rainfall alone except for extremely hot weather or prolonged periods without rain. During these times, water the plant fully during cooler parts of the day to protect it from heat damage. Additional watering will be necessary during extended dry spells.

PLATES
Prosopis glandulosa leaf
PLATE 01 · leaf
Prosopis glandulosa leaf
PLATE 02 · leaf
Prosopis glandulosa flower
PLATE 03 · flower
Prosopis glandulosa flower
PLATE 04 · flower
Prosopis glandulosa fruit
PLATE 05 · fruit
Prosopis glandulosa fruit
PLATE 06 · fruit
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