Diplacus aurantiacus — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Diplacus aurantiacus

Diplacus Aurantiacus

Updated · 287 observations
ON THIS PLANT

Diplacus aurantiacus, commonly known as the sticky monkeyflower, is a flowering plant native to California and Oregon in the United States. This member of the Phrymaceae family typically thrives in chaparral, coastal sage scrub, and oak woodland habitats. The plant can grow up to 3 feet tall and features bright orange or yellow trumpet-shaped flowers that bloom from late winter to early summer. Its leaves are sticky with glandular hairs, which help protect against herbivores and aid in water retention.

Sticky monkeyflower is a vital source of nectar for hummingbirds and other pollinators. Indigenous peoples have used it medicinally for its antibacterial properties and to treat respiratory ailments such as coughs and colds. Today, it is commonly used in landscaping for its attractive flowers, drought tolerance, and ability to attract wildlife like birds and butterflies.

A note from PlantMom

Sticky monkey-flower has strong resistance to disease and is usually not prone to illnesses. However, it can be vulnerable to pests and diseases present in its surroundings. These issues are typically mild. Regarding care, this plant needs a moderate level of maintenance. It should be pruned regularly to preserve a neat appearance and healthy growth. Fertilizing can also help encourage flowering. Sticky monkey-flower is appropriate for anyone with outdoor space, such as a garden or patio, and does not demand extensive care experience. It may need more attention if grown indoors.

— PlantMom
CARE GUIDE

How to keep Diplacus Aurantiacus.

Light

The sticky monkey-flower thrives with abundant sunlight and can tolerate partially shaded locations. Native to sunny habitats, it develops much better when exposed to plenty of light. Too much or too little light can inhibit its growth or cause its leaves to become discolored.

Water

The sticky monkey-flower thrives in coastal scrub environments and prefers dry conditions, showing moderate drought tolerance. To keep the plant healthy, water it weekly, but avoid oversaturating the soil. Typically grown outdoors, this resilient plant performs well during dry seasons, making it an excellent choice for xeriscaping in arid climates.

Temperature

Sticky monkey-flower naturally occurs in places with temperatures from 68 to 100 °F (20 to 38 °C). It prefers warmer climates. In colder seasons, increasing the surrounding temperature to meet its needs is advisable.

Fertilizer

A single fertilizer application in spring is generally enough for Sticky monkey-flower, though repeated feedings can help maximize its growth. Apply fertilizer every four to six weeks. Fertilizing improves the leaves' appearance and function, keeping color even and texture healthy. It also encourages root development and better nutrient uptake, supporting the plant's long-term health.

Pruning

Sticky monkey-flower is an evergreen shrub known for its vibrant orange flowers. To encourage bushier growth, improve airflow, and remove dead wood, prune the plant in early spring after it has finished flowering. Regular trimming also promotes more abundant blooms. Be sure to use sanitized tools when pruning to prevent infection and support healthy regrowth.

Pot & Repot

When repotting Sticky monkey-flower, choose a pot 1-2 inches (2.5–5.1 cm) larger with ample drainage. Use a well-draining potting mix. Repot in spring or fall, ensuring the root ball sits slightly below the rim of the flower pot. Water thoroughly after repotting and place it in a warm spot with indirect sunlight.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial, Annual
Genus
Diplacus
Family
Phrymaceae
Hardiness Zone
8-11
Mature Height
0.1 m to 1.52 m
Mature Spread
30 cm
Leaf Color
Green
Leaf Type
Evergreen
Flower Color
Orange
Flower Size
2.54 cm to 5.08 cm
Bloom Time
Mid spring, Late spring, Summer
Planting Time
Spring
Harvest Time
Late spring, Summer, Early fall
Native Area
Mexico
ALSO KNOWN AS

Other names.

en Bush monkey-flower en Orange bush monkey-flower en Orange bush monkeyflower en Orange Bush-Monkey-Flower
FREQUENTLY ASKED

Reader questions.

How should I water my Sticky monkey-flower?

When watering the Sticky monkey-flower, it's important to use filtered water at room temperature or slightly warmer. Tap water can contain harmful particles, so filtered water is preferable. The Sticky monkey-flower originates from warm environments, so cold water can be a shock to its system. It's also best to avoid overhead watering to prevent foliage complications. Instead, apply filtered room temperature water directly to the soil until it is completely soaked. This benefits the plant by moistening the roots and helping them spread and collect nutrients in the soil.

Why should I add fertilizer to my Sticky monkey-flower?

The main structure of the Sticky monkey-flower is made up of its leaves, and fertilization is key to maintaining their appearance and function. By fertilizing your plant properly, you can ensure that its leaves have consistent color and a healthy texture. Fertilization also benefits the plant's root system by aiding in the growth of new roots and maintaining existing ones. This not only promotes the plant's current health but also enhances its ability to absorb nutrients from the soil in the future.

What are the sunlight requirements for Sticky Monkey-Flower?

The Sticky Monkey-Flower thrives best under full sun conditions, needing more than 6 hours of direct sunlight daily. It can also survive in partial sun, with approximately 3-6 hours of sunlight. It's important to observe how sunlight navigates through your garden to find spots that offer an ideal balance of light and shade, optimizing plant health and growth.

What is the native environment temperature range for Sticky monkey-flower?

Sticky monkey-flower, botanically known as Diplacus aurantiacus, thrives in environments where temperatures range from 68 to 100°F (20 to 38°C). It prefers warmer climates and can exhibit some cold tolerance, making it versatile in its temperature requirements. Despite this tolerance for cooler weather, when temperatures drop below 0°C, it is advisable to implement temporary measures for cold protection. This could involve using plastic film, fabric, or other suitable materials to wrap the plant, which should be removed once temperatures rise again.

What should I do if I give too much or too little water to my Sticky monkey-flower?

Overwatering is a common issue for Sticky monkey-flowers and can cause wilting, yellowing of leaves, and potentially fatal diseases like root rot, mold, and mildew. On the other hand, underwatering is less common due to the plant's drought tolerance, but still possible. Signs of underwatering include brittle, brown leaves. It's important to identify signs of overwatering early as some diseases may be irreversible if not addressed promptly. To address overwatering, reduce watering and check soil drainage. If underwatering is the issue, increase watering until signs improve.

When should I fertilize my Sticky monkey-flower?

If you grow your Sticky monkey-flower outdoors each year, it will send out new growth in early spring. This is when you should start fertilizing. Usually, one application of fertilizer is enough for the Sticky monkey-flower to do well. However, if you want it to grow even more, you can fertilize it multiple times during the spring and early summer. In that case, you can feed it about once every month to a month and a half.

How does lighting affect the growth of Sticky Monkey-Flower?

The Sticky Monkey-Flower, originating from sunny habitats, shows significant growth when exposed to ample sunlight. The essentials for its growth include a generous amount of sunlight, although it can manage in moderately lit areas. Too much or too little light may hinder growth or lead to leaf discoloration. During low light conditions, especially in winter or less sunny spaces, artificial lights such as LED can provide the needed wavelengths for growth, mimicking natural sunlight conditions with specific recommendations for full sun, partial sun, and full shade plants.

How does Sticky monkey-flower react to low temperatures?

Sticky monkey-flower has a moderate tolerance to low temperatures and performs best when temperatures are maintained above 20°C. During winter, it's crucial to keep it at temperatures above 0°C to avoid frost damage. Exposure to temperatures below -10°C may cause the leaves to droop, and while they can recover if the cold snap is mild, severe conditions might lead to the leaves wilting and eventually falling off. If frost damage occurs, trimming off the frost-damaged parts and providing additional protection, such as wrapping the plant or constructing wind barriers, can help mitigate further damage.

How frequently should I water my Sticky monkey-flower?

If your Sticky monkey-flower is in a pot, the most precise way to determine if it needs water is by sticking your finger into the soil. If the top two to three inches of soil feel dry, it's time to water it. Similarly, if you have planted the Sticky monkey-flower outside in the ground, you can use the same method to test the soil. When the top few inches of soil have dried out, it's time to water. Usually, during the spring and early fall, you will need to water this plant about once a week using this method. However, during extremely hot weather, you may need to water it twice a week or more. It's worth noting that mature, well-established Sticky monkey-flowers can handle drought conditions quite well.

When is it not a good idea to fertilize my Sticky monkey-flower?

During the late fall and winter, your Sticky monkey-flower will go into a dormant phase without producing new growth. It's best to avoid fertilizing it during this time. If you do choose to fertilize during spring and summer, start reducing the amount as summer approaches. The growth rate of your Sticky monkey-flower will also slow down. In general, it's not advisable to fertilize when the weather is unusually hot or when the soil is very dry. Fertilizing in those conditions can cause stress and premature death for your Sticky monkey-flower.

What are common symptoms of light deficiency in Sticky Monkey-Flower?

When Sticky Monkey-Flower does not receive sufficient light, several symptoms may emerge, including smaller new leaves, leggy or sparse growth, premature leaf drop, halted new growth, and lighter-colored or chlorotic leaves. Excessive sunlight, on the other hand, may cause leaf scorching, chlorosis, sunscald, leaf curling, and wilting. These symptoms indicate the plant's struggle with inadequate or excessive light exposure.

What actions should be taken if Sticky monkey-flower experiences high temperatures?

During the summer months, it's important to ensure that the temperature surrounding a Sticky monkey-flower plant does not exceed 38°C. Exposure to temperatures above 43°C can lead to the lightening of leaf color, drying and withering of leaf tips, leaf curling, and increased susceptibility to sunburn. To protect and care for the plant under these conditions, trimming away sunburned and dried-up parts, relocating the plant to a shaded location, or using a shade cloth are effective strategies. It's also recommended to water the plant in the morning and evening to maintain soil moisture and reduce temperature stress.

PLATES
Diplacus aurantiacus leaf
PLATE 01 · leaf
Diplacus aurantiacus leaf
PLATE 02 · leaf
Diplacus aurantiacus flower
PLATE 03 · flower
Diplacus aurantiacus flower
PLATE 04 · flower
Diplacus aurantiacus habit
PLATE 05 · habit
Diplacus aurantiacus habit
PLATE 06 · habit
ALSO IN THE LIBRARY

You might also like.