Epacris impressa — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Epacris impressa

Epacris Impressa

Updated · 26 observations
ON THIS PLANT

Epacris impressa, also known as common heath, is a plant of the heath family, Ericaceae, that is native to southeast Australia (the states of Victoria, Tasmania, South Australia and New South Wales). French botanist Jacques Labillardière collected the species in 1793 and described it in 1805. Four forms have been identified, but no subspecies are recognised. Growing in heathland, shrubland or open forest, it is generally a small shrub around 0.5 to 1 m (1 ft 8 in to 3 ft 3 in) tall, with small stiff leaves. The red, pink or white tube-like flowers appear from late autumn to early spring. Honeyeater birds, particularly the eastern spinebill, feed upon the nectar of the flowers. It regenerates after bushfire by seed or by resprouting. A highly regarded garden plant, the common heath was first cultivated in England in 1825; over seventy named cultivars have been developed, most of which have now vanished. A pink-flowered form, often referred to as "pink heath", is the floral emblem of the state of Victoria. Epacris impressa has proven a difficult plant to propagate reliably, which has limited its use in horticulture and revegetation. It grows best in well-drained but moist soil in a semishaded position.

A note from PlantMom

Pink heath has strong resistance to disease and is typically not susceptible to illnesses. Regarding care, this plant is fairly low-maintenance. When grown outdoors it needs only minimal watering, and larger specimens usually do not require pruning. Smaller plants, however, should be pruned after they finish blooming. Pink heath is appropriate for anyone with an outdoor area, like a garden or a deck, and does not demand extensive gardening experience.

— PlantMom
CARE GUIDE

How to keep Epacris Impressa.

Light

Pink heath does best when it gets unblocked sun for most of the day, though it can withstand times with less light. Its original habitat provided plentiful, unobstructed light. However, both too much and too little light can impair the plant’s growth and flowering and negatively affect its overall health.

Water

Pink heath flourishes in moist, cool environments, needing consistent moisture without being waterlogged. Watering once a week ensures the soil remains damp but well-drained. As an evergreen plant, it requires regular watering to keep its foliage healthy. Pink heath is usually grown outdoors and prefers cooler temperatures and higher humidity levels.

Temperature

Pink heath is native to temperate habitats and thrives at temperatures of 59 to 95 °F (15 to 35 ℃). To reproduce its natural conditions, you may need to adjust your plant's care as seasonal temperatures change.

Fertilizer

The timing is important when fertilizing Pink heath. Apply fertilizer in early spring and then once a month up to early summer. Fertilizer encourages attractive blooms and supplies energy both during dormancy and periods of active growth.

Pruning

Pink heath features slender, needle-like leaves and bell-shaped flowers. To maintain its health, prune it in early spring after it has finished flowering. During this time, remove any dead wood and thin out overcrowded branches to improve air circulation. Light trimming encourages bushier growth and more abundant blooms, but avoid heavy pruning as it can stress the plant.

Pot & Repot

To promote growth, repot your pink heath every 2-3 years during the spring. Choose a larger pot that offers good drainage and fill it with a well-draining soil mix. After repotting, make sure to keep the soil consistently moist and apply a thin layer of mulch. Allow some time for your pink heath to adjust to its new environment, as it may take a while for the plant to settle in.

CHARACTERISTICS

Botanical profile.

Plant Type
Shrub
Life Cycle
Perennial
Genus
Epacris
Family
Ericaceae
Hardiness Zone
8-9
Mature Height
2.13 m to 3.05 m
Mature Spread
0.91 m to 1.52 m
Leaf Color
Green, Blue
Leaf Type
Evergreen
Flower Color
White, Pink, Red
Flower Size
0.51 cm to 0.76 cm
Bloom Time
Winter, Early spring, Mid spring
Planting Time
Spring, Summer, Autumn
Harvest Time
Late spring, Early summer, Mid summer
ALSO KNOWN AS

Other names.

en Common-heath en Pink heath
FREQUENTLY ASKED

Reader questions.

How should I water my Pink heath plant?

Your Pink heath is not picky when it comes to watering. You can use common watering tools like watering cans, hoses, or even cups. It's important to water directly onto the soil, making sure to evenly moisten all areas. Filtered water is best as tap water might have harmful particles. Water at or slightly above room temperature is ideal, as extremely hot or cold water can be a shock. However, the Pink heath generally does well with any kind of water.

Why should I add fertilizer to my Pink heath plant?

Fertilizing a Pink heath is essential for several reasons. Firstly, it helps the plant produce beautiful blooms. One of the best times to fertilize is early spring, as it ensures excellent flowers during that season. Additionally, fertilizer provides the Pink heath with energy that it can store in the ground when it's not actively growing. By giving extra nutrients during the fall planting or late spring, the Pink heath will have more energy to use when it resumes active growth.

How many hours of sunlight per day should Pink heath garden plants get to grow well?

To ensure healthy growth, Pink heath should be exposed to at least 3–6 hours of sun daily. This is the minimum amount required, as most plants that tolerate part sun can also thrive in full sun. However, since they require less light for photosynthesis, these plants are more adaptable compared to those that specifically need full sun or part shade.

What temperature is best for Pink heath?

Plants are affected by colder temperatures because they adjust to the temperature of the air around them. When they are exposed to the sun, they warm up, but this doesn't happen in the winter. The Pink heath, for example, prefers temperatures between 70~85℉(21~30℃). It can tolerate temperatures as low as 20~30℉(-6~0℃), and maybe even 15℉(-10℃), but not for long as it can lead to frost damage. To keep the plants healthy, ensure that the maximum temperature stays within the 70~85℉(21~30℃) range, and provide them with occasional water and some shade to prevent wilting.

What should I do if I give too much water or too little to my Pink heath plant?

When caring for outdoor plants, especially newly planted ones or plant seedlings, it is important to ensure they are watered enough. Keep in mind that during the first few months, when the tree is small or recently planted, regular watering is crucial. Once the roots are established, Pink heath can usually rely on rainwater. If you have potted Pink heath, be cautious not to overwater them since it is a common problem. In the event of accidental overwatering, it is important to act promptly to minimize the damage. Immediately stop watering the plant and inspect the roots by removing it from the pot. If there is no sign of root rot, you can return the plant to its pot. However, if there are signs of root rot, trim the affected roots and consider using a fungicide to prevent further damage. Repot the Pink heath in well-draining soil. On the other hand, underwatering Pink heath is an easy issue to fix. If the plant is underwatered, the leaves may droop, dry out, and fall off. Once properly watered, the leaves will regain their fullness quickly. It is important to adjust your watering frequency as soon as you notice underwatering occurring.

When should I fertilize my Pink heath plant?

It is important to time the fertilization of Pink heath properly in order to be effective. If fertilizer is applied too early while the Pink heath is dormant, it will not have any effect and will be washed away by rainwater, leading to waste and pollution. The first application of fertilizer should be done in early spring, followed by monthly applications until early summer.

What kind of sunlight does Pink heath require?

Pink heath thrives when it is exposed to full or part sun. It thrives especially well when it receives direct morning light. However, during summer, it is important to protect pink heath from the strong afternoon sun. In temperate environments, excessive hot afternoon sun can cause the leaves to burn, which can negatively impact the plant's appearance and health.

Should I change the temperature for Pink heath at different stages of growth?

When growing Pink heath, it is important to research and ensure the temperature is appropriate. Some growers may choose to lower the plants' thermostats during the growing season to save on HVAC costs. However, it is crucial to understand that temperature can impact flowering, pest control, and plant quality. Pink heath growth may stop when temperatures drop in the winter, potentially entering a dormant state. As seasons change and temperatures rise, the base temperature for Pink heath increases, allowing for faster growth. Species naturally found in warm habitats have higher optimum temperatures compared to those thriving in cooler climates. Exposing Pink heath seeds to cool temperatures can lead to uneven growth and delays. During flowering, it may be beneficial to lower the temperature, but not during other phases. Cooler nighttime temperatures also require less water, so irrigation should be adjusted accordingly.

How frequently do I need to water my Pink heath plant?

If your area doesn't receive enough rainfall, you should water your plants every 2 weeks in the spring and fall, and more frequently in the summer. In the winter, when plants need less water, you can water them less often or not at all. But if your Pink heath is young or newly planted, you should water it more often to help it establish and grow. For potted plants, you have two options for determining how often to water your Pink heath. One way is to follow a set watering schedule, typically once a week or every other week. However, this might not be enough if the growing conditions are unique. Another option is to check the soil moisture. Wait until the top two to four inches of soil have completely dried out before watering again.

When is it best to not add fertilizer to my Pink heath plant?

To ensure optimal growth for Pink heath, it is important to carefully manage its fertilizer application. Avoid using fertilizers with high nitrogen content, as this can result in an abundance of leaves but few blooms. Instead, choose fertilizers that have lower nitrogen levels in comparison to other nutrients. Timing is crucial when it comes to fertilizing Pink heath. Refrain from fertilizing after early autumn, as this can promote excessive growth right before winter, which is unfavorable. Additionally, avoid fertilizing during hot and dry periods, as dry soil does not effectively absorb nutrients. Fertilizing during this time can also stimulate growth that requires additional water, which may not be readily available. Therefore, it is advisable to apply fertilizer earlier in the season when temperatures are cooler. Lastly, keep in mind that Pink heath can unintentionally absorb fertilizer that has been applied to nearby plants or lawns. To prevent accidentally over-fertilizing the tree or shrub, exercise caution and avoid providing it with a double-dose of fertilizer.

Can sunlight harm Pink heath? How can I keep Pink heath safe from the sun and heat?

When moving Pink heath from indoor to outdoor, direct sunlight can harm the plant. To prevent sunburn, gradually move the pots from a shaded area to a brighter spot. However, even plants used to the sun can be damaged by extreme heat. During a heatwave, it's important to keep the soil consistently moist so the plants can handle the excessive heat. To protect the Pink heath during extreme weather, move potted plants to areas with afternoon shade or use a shade cloth.

How can I keep my Pink heath plant warm when it's cold outside?

To help the Pink heath withstand colder temperatures, stop applying fertilizer to prevent new growth and allow the existing ones to become more resistant. You can create structures such as cages or trellises to provide warmth for the plant. Alternatively, you can use heat mats to gently warm the soil, as they can maintain an ideal temperature range consistently for the Pink heath.

PLATES
Epacris impressa leaf
PLATE 01 · leaf
Epacris impressa flower
PLATE 02 · flower
Epacris impressa flower
PLATE 03 · flower
Epacris impressa habit
PLATE 04 · habit
ALSO IN THE LIBRARY

You might also like.