How to Grow Orange Blossom Shrub - Plant Care & Tips

By NorwichGardener Team   /   2024

Orange blossom shrub is a beautiful plant that is perfect for adding a touch of elegance to any garden. This plant is easy to care for and is quite hardy, making it a great choice for both novice and experienced gardeners alike. Orange blossom shrub is an evergreen plant, meaning it will keep its leaves year-round. The leaves are a deep green color and are quite glossy. The flowers of this plant are what give it its name, as they are a delicate orange color. Orange blossom shrub is a relatively slow-growing plant, but it can reach up to 6 feet tall and 8 feet wide at maturity.

How to Grow Orange Blossom Shrub - Plant Care & Tips

Alternative name

  • Citrus sinensis
  • Orange jessamine
  • fragrant orange
  • hardy orange
  • orange jasmine

Good to Know

  • Orange blossom shrubs are popular ornamental plants in many gardens.
  • They are easy to grow and care for.
  • Orange blossom shrubs produce beautiful white flowers that have a strong citrus fragrance.
  • The flowers of orange blossom shrubs are often used in floral arrangements.
  • Orange blossom shrubs can be found in many different sizes, from dwarf varieties to large specimen plants.
  • Orange blossom shrubs are generally very hardy and can tolerate a wide range of growing conditions.
  • These shrubs typically have a long blooming season and will flower from spring through fall.
  • Orange blossom shrubs are attractive to bees and other pollinators and can provide them with an important source of food.
  • Orange blossom shrubs can be susceptible to a number of pests and diseases, so it is important to choose a variety that is resistant to these problems.
  • Orange blossom shrubs make excellent additions to any garden and can provide years of enjoyment.

Related plant:
Bush Orange

Planting Process

  1. For orange blossom shrub, first step is to find a location that has full sun and well-drained soil.
  2. Then, dig a hole that is twice the width and depth of the root ball.
  3. After that, mix in some compost or other organic matter into the hole.
  4. Next, place the orange blossom shrub in the hole and backfill with soil.
  5. Tamp down the soil gently and water deeply.
  6. Apply mulch around the base of the plant to help with moisture retention.
  7. Finally, fertilize the orange blossom shrub in early spring and summer.

Related plant:
Mexican Mock Orange

The Soil

About soil condition, orange blossom shrub (Osmanthus fragrans) prefers neutral to slightly acidic, humus-rich soil. It will tolerate less than ideal conditions, but won't be as vigorous. The ideal spot for planting is in full sun to partial shade. If you have heavy clay soil, mix in some sand to improve drainage before planting.

Light requirement

Like the other orange trees, orange blossom shrubs need full sun to produce the most blossoms. If you live in an area with intense heat, you may need to provide some afternoon shade. This can be done by planting the shrub next to a taller tree or building. Orange blossom shrubs are also fairly drought tolerant once they are established.

Ideal Temperature

The temperature condition that is best for the orange blossom shrub is a warm climate. This shrub thrives in warm weather and does not do well in cooler climates. If you live in a cooler climate, you may need to provide extra warmth for this shrub. One way to do this is to grow the shrub in a pot and bring it indoors during the cooler months.

Humidity Aspect

Ideal humidity condition for this plant is between 60 - 80%. If the air is too dry, the leaves will drop and the flowers will wilt. If the air is too humid, the leaves will yellow and the plant will become susceptible to fungal diseases.

The Fertilizer

The fertilizer, usually the plant food, is very important to the orange blossom shrub. The root system is very strong, and it can absorb a lot of nutrients from the soil. However, it is still important to fertilize the orange blossom shrub regularly.

Plant Pruning

Pruning your orange blossom shrub will keep it healthy and looking its best. It's important to prune away any dead or dying branches, as well as any that are crossing or rubbing against each other. You'll also want to trim back any branches that are growing too close to the ground or that are interfering with other plants in the garden. When pruning, be sure to make clean cuts at a 45-degree angle.

The Propagation

Propagation is typically done through rooting stem cuttings taken from the desired plant. The cuttings should be taken from new growth and should be about 6 inches long. The bottom 2 inches of the cutting should be placed in a rooting hormone and then placed in a pot filled with moistened potting mix. The pot should be placed in a warm location out of direct sunlight. Once roots have developed and the plant is established, it can be transplanted to its desired location.

Growth Speed

Usually, the plant growth rate is dependent on the age of the plant. Young plants will grow at a faster rate than older plants. The growth rate is also determined by the amount of sunlight and water the plant receives.

Basic Problems

Common problems for this kind of plant are caterpillars, scale, and whitefly. These pests can cause the leaves to turn yellow and fall off the plant. In severe cases, the plant may die. To control these pests, use an insecticide or hire a professional pest control company.

Tips on Growing

  • Make sure to plant your orange blossom shrub in an area that receives full sun.
  • Plant your orange blossom shrub in well-drained soil.
  • When planting, make sure to dig a hole that is twice the size of the shrub’s root ball.
  • After planting, water your shrub well.
  • Fertilize your orange blossom shrub once a month during the growing season.
  • Prune your shrub regularly to maintain its shape.
  • Keep an eye out for pests and diseases.
  • Apply a mulch around the base of the shrub to help retain moisture.
  • If you live in an area with cold winters, you may need to provide some protection for your orange blossom shrub.
  • Enjoy the beautiful blossoms your orange blossom shrub produces!

Substitution

  • Sweet Orange Tree (Citrus sinensis)
  • Lemon Tree (Citrus limon)
  • Mandarin Orange Tree (Citrus reticulata)
  • Grapefruit Tree (Citrus x paradise)
  • Tangerine Tree (Citrus tangerina)
  • Bergamot Orange Tree (Citrus bergamia)
  • Clementine Tree (Citrus × clementina)
  • Key Lime Tree (Citrus aurantifolia)
  • Kumquat Tree (Fortunella margarita)
  • Limequat Tree (Citrus × limetta)

Source:
Orange Blossom - Rare, Beautiful & Fascinating
Managing Pests in Gardens: Trees and Shrubs: Choisya—UC IPM - ucanr.edu
Mock-orange | OSU Extension Service

Richelle Author Photo
Reviewed & Published by Richelle
Submitted by our contributor
Shrubs Category