Cordia sebestena
🍃leaf (5)
🌸flower (5)
🍎fruit (5)
🌳bark (5)
🌿habit (5)
🌱other (5)

Cordia sebestena

Largeleaf geigertree · Geranium-tree · Geigertree · Large-leaf geigertree · Scarlet Accordia

Tier 1 Difficulty: easy Water: low Light: full_sun
Water every
7 days
Temperature
20–37 °C
Soil pH
6–7
Hardiness
Zone 10–11
Click count
303
Observations
718

Description

Source: leafsnap

Cordia sebestena, commonly known as the Orange Geiger tree, is a small to medium-sized evergreen tree in the Boraginaceae family. It is native to tropical regions of the Americas, including countries such as Mexico, Brazil, and Venezuela. This tree can grow up to 10 meters in height and features a spreading canopy with glossy, oval-shaped green leaves. The Orange Geiger tree produces bright orange, trumpet-shaped flowers that bloom in clusters from late spring through early fall. These flowers are highly attractive to bees and butterflies due to their sweet nectar. After flowering, small orange fruits develop, each containing numerous seeds. Often used as an ornamental plant, the Orange Geiger tree is prized for its attractive foliage and striking flowers, making it an excellent choice for landscaping in gardens or parks. It prefers full sun exposure but can also tolerate partial shade and thrives in well-drained soil conditions. In traditional medicine practices in countries such as Mexico and Cuba, the Orange Geiger tree has been used for treating respiratory problems like asthma and bronchitis, among other ailments. However, there is no scientific evidence to support these medicinal claims. Overall, Cordia sebestena is a beautiful tropical plant with great ornamental value, adding color and vibrancy wherever it grows. Additionally, it holds some traditional medicinal uses in the cultures where it is native.

🌳 Although its main attraction is ornamental, geiger Tree also has useful applications in textile making. Artisans have found that the tree's flowers contain concentrated, vivid pigments that, when extracted, act as a natural dye. This dye is especially prized for its bright orange tone, bringing a hint of tropical color to fabrics. It serves as a sustainable alternative to synthetic dyes, showing that in fashion and art, nature's colors are both powerful and preferred by eco-conscious creators.

Care Guide

💧 Water Every 7 days

The Geiger Tree flourishes in tropical climates, as it requires consistent moisture and benefits from its moderate drought tolerance. To keep the soil lightly moist without causing waterlogging, it is recommended to water the tree every two weeks. As an evergreen, it also benefits from mulching, which helps retain moisture and protects the roots during warmer months.

Suggested frequency: Every 7 days
FAQ
How should I water my Geiger Tree properly?

Your Geiger Tree is not particular about how you water it. You can use any common watering tool, such as watering cans, hoses, or cups. Regardless of the tool you choose, it is important to water the soil directly. Make sure to evenly moisten all areas of the soil to provide sufficient water to the root system. Using filtered water is recommended to avoid harmful particles found in tap water. Additionally, it is best to use water that is at or slightly above room temperature as extreme temperatures can shock the Geiger Tree. However, the Geiger Tree is generally adaptable and will respond well to any type of water.

What should I do if I give my Geiger Tree too much or too little water?

Outdoor plants, especially newly planted ones or seedlings, are prone to not being watered enough. It's important to water them regularly, especially for a few months when the tree is small or just planted. This is because once the roots are established, Geiger Trees can usually rely on rain for hydration. When Geiger Trees are planted in pots, overwatering is more common. If you accidentally overwater your Geiger Tree, you should take immediate action to address the situation. First, stop watering the plant right away to minimize the impact of overwatering. Then, remove your Geiger Tree from its pot to inspect the roots. If there are no signs of root rot, you can return the plant to its container. However, if you notice root rot, trim away the affected roots and consider using a fungicide to prevent further damage. Finally, repot your Geiger Tree in well-draining soil. In the case of underwatering, simply water the Geiger Tree more frequently. It's an easy fix. If the plant's leaves start drooping, drying out, and falling off due to underwatering, they will regain fullness quickly after sufficient watering. Make sure to correct your watering frequency as soon as you notice underwatering.

How frequently should I water my Geiger Tree?

Growing most outdoor plants typically requires natural rainfall. However, if your area lacks rain, it's important to water your plants adequately. During spring and fall, watering every 2 weeks should be enough. But in the summer, you'll need to water more frequently. In winter, when plant growth slows down, you can water less often or not at all. Young or newly planted Geiger Trees will benefit from more frequent watering to help them establish and become more adaptable to drought conditions. For potted Geiger Trees, there are two primary ways to determine watering frequency. The first is to follow a set schedule, such as watering once a week or every other week. However, this approach may not be ideal as it doesn't consider the specific conditions of your growing environment. Your watering frequency should also change depending on the season. During summer, when the tree's water needs are highest, a predetermined schedule may not be sufficient. An alternative method is to base watering on the moisture level of the soil. It's generally best to wait until the top 2 to 4 inches of soil have completely dried out before watering again.

How much water does my Geiger Tree require?

When watering your Geiger Tree, you may be surprised to learn that it doesn't always require a large amount of water. Instead, if only a few inches of soil have dried since the last watering, you can promote healthy growth by giving it about five to ten ounces of water each time. You can also determine the amount of water based on the moisture of the soil. As mentioned earlier, take note of how many inches of soil have dried between waterings. To ensure that your Geiger Tree receives enough moisture, water it enough to moisten all the dry soil layers since the previous watering. If over half of the soil has dried, you may need to give more water than usual. In such cases, continue adding water until excess water drains from the pot's drainage holes. If your Geiger Tree is planted in an area with ample rainfall, it may not need additional watering. When the tree is young or still establishing, make sure it receives 1-2 inches of rain per week. As it grows and becomes established, it can rely solely on rainwater unless there is a prolonged period of hot weather without any rainfall for 2-3 weeks. In such cases, consider giving your Geiger Tree a thorough watering to prevent stress.

How can I know if I'm giving my Geiger Tree enough water?

The Geiger Tree is more commonly affected by overwatering, and there are clear signs to watch for in this situation. If a Geiger Tree is overwatered, its leaves will turn yellow and may fall off. Additionally, excessive watering can cause the plant's structure to shrink and even lead to root rot. On the other hand, an underwatered Geiger Tree will also show signs of distress. It may wilt and have brown or brittle leaves. Regardless of whether you observe signs of overwatering or underwatering, it is important to take action and restore the health of your Geiger Tree.

☀️ Light Full sun

The Geiger Tree favors settings with abundant sunlight throughout the day, though it can adjust to places that receive only partial sun daily. This ample light promotes the plant's healthy growth. Too little or too much sunlight can impede its development.

Ideal: Full sun
FAQ
What are the sunlight requirements for a Geiger Tree?

The Geiger Tree is notable for its flexibility in sunlight needs, thriving best with ample sunlight throughout the day but can also adapt to partial sun exposure which ranges from about 3 to 6 hours a day. Full sun exposure refers to areas that receive more than 6 hours of sunlight daily. It’s important to observe the movement of sunlight through your garden to find the optimal balance for your plants, allowing them to flourish healthily.

How should indoor plants be lit when natural sunlight is insufficient?

When natural light is insufficient, particularly during winter or in spaces that don't get much sunlight, artificial lighting becomes crucial for maintaining the growth of indoor plants. LED lights are a popular choice due to their ability to emulate specific light wavelengths needed by plants. For plants requiring full sun, 30-50W/sq ft of artificial light is recommended; for partial sun, 20-30W/sq ft; and for full shade, 10-20W/sq ft. The artificial light source should be placed 12-36 inches from the plant, emulating the length of natural daylight, which is typically 8-12 hours per day.

What symptoms indicate a Geiger Tree is receiving insufficient light?

A Geiger Tree under inadequate lighting can display several symptoms, indicating its struggle with light deficiency. These symptoms include smaller-than-usual new leaves, leggy or sparse growth, premature leaf drop, halted growth or slow to no new growth, lighter-colored new leaves, and conditions such as chlorosis—where leaves turn yellow due to chlorophyll breakdown, sunscald, leaf curling as a defense against overexposure, wilting, and leaf scorching with brown or crispy edges.

What can be done to address insufficient light for Geiger Trees?

To address insufficient light for Geiger Trees, gradual relocation to sunnier spots is advised for optimal growth, aiming for at least 6 hours of direct sunlight daily. This could involve moving plants closer to a south-facing window or using artificial light sources such as desk lamps or professional grow lights for at least 8 hours a day. Outdoors, moving plants to better-lit areas and minimizing obstructions such as pruning trees can help. When transplanting smaller plants, doing so during their dormant period ensures less stress and better adaptation to new sunlight conditions. Note that parts of the plant already affected by poor lighting may not recover, but new growth should be healthy with improved light exposure.

🌡️ Temperature 20–37.8°C

The Geiger tree plant is native to tropical areas and prefers temperatures from 68 to 100 ℉ (20 to 38 ℃). In winter, it may have difficulty when temperatures fall below 50 ℉ (10 ℃) and might need supplemental heat. In summer, it can tolerate temperatures as high as 120 ℉ (49 ℃), but will require extra watering.

Ideal temperature: 20–37.8°C
FAQ
What is the ideal temperature range for a Geiger Tree?

The Geiger Tree, botanically known as Cordia sebestena, is native to tropical regions and thrives in temperatures between 68 to 100°F (20 to 38°C). It struggles in temperatures below 50°F (10°C) during winter and may require supplemental heat. In summer, it can tolerate temperatures as high as 120°F (49°C), although additional watering will be necessary to keep it healthy. It's important to maintain temperatures above 20°C during winter to support its growth, as temperatures approaching 5°C can be detrimental to the plant.

How should the Geiger Tree be cared for in cold temperatures?

The Geiger Tree prefers warm temperatures and is not tolerant of low temperatures, thriving best when the temperature is above 20°C. During winter, it should be kept in an environment above 5°C. Exposure to temperatures below 1°C can lead to a lightening of the leaves' color, and following frost damage, leaves may turn brown or black with symptoms such as wilting and drooping. The solution involves trimming off the frost-damaged parts and moving the tree indoors to a warm environment for protection against the cold. It is recommended to place the plant near a south-facing window for ample sunlight, while ensuring it is not placed near heaters or air conditioning vents to avoid excessive dryness in the air.

What should be done if a Geiger Tree experiences high temperatures?

In high temperatures, particularly during summer, the Geiger Tree should ideally be kept below 38°C. Exposure to temperatures exceeding 43°C may cause the leaves to lighten in color and increase the risk of sunburn. To care for a heat-stressed Geiger Tree, trim away the sunburned and dried-up parts of the plant. Relocate it to a spot that offers shade from the harsh midday and afternoon sun. Ensure the plant is watered in the morning and evening to maintain soil moisture, as this will help mitigate the effects of high temperatures.

💨 Humidity normal (40-60%)

This plant will thrive in moderate humidity, which is probably the level in your home. However, misting it a few times a week can be very beneficial. Make sure the room has good ventilation.

Humidity: normal (40-60%)
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

The best time to fertilize a Geiger Tree is in early spring, when it comes out of dormancy. This encourages overall growth and flower development. Fertilization improves foliage, stems, and branches, and promotes flowers that are large, vibrant, and long-lasting. It helps transfer nutrients from the roots to the flowers and enhances the plant’s health and resistance to disease.

FAQ
Why should I put fertilizer on my Geiger Tree?

Fertilization plays a crucial role in the overall health and well-being of a Geiger Tree. When provided with the right energy and nutrients, the tree develops lush foliage and strong stems and branches. Gardeners mostly value the flowers of a Geiger Tree, and luckily, fertilization can help produce large, vibrant, and long-lasting flowers. This is because appropriate fertilization facilitates the transfer of fuel from the roots to the stems and flowers of the tree. In addition to promoting flower production, proper fertilization maintains the tree's overall health, making it more resistant to diseases.

When should I fertilize my Geiger Tree to get the best results?

The best time to fertilize a Geiger Tree is in early spring when it is coming out of dormancy and preparing to bloom. This will provide the tree with the energy it needs for growth and flower development. However, it is also beneficial to fertilize the tree in the fall, although a smaller amount is needed. Fertilizing while planting is optional.

When is it not a good idea to add fertilizer to my Geiger Tree?

Geiger Trees, like many other plants, do not require fertilization in the winter. During this time, Geiger Trees are in a dormant phase and do not need much energy from the soil to grow. Fertilizing during the winter can increase the chances of overfertilization and its negative effects. The optimal feeding times for Geiger Trees are in the early spring and fall. Therefore, fertilizer is not necessary for most of the spring and summer. Additionally, it is advisable to avoid fertilizing if the plant is subjected to extreme heat or dry conditions.

What kind of fertilizer does my Geiger Tree need?

When using fertilizer for Geiger Tree plants, it is recommended to use a specific type of fertilizer rather than a general-purpose one. The most important nutrients for Geiger Trees are nitrogen and phosphorus, so it is best to choose a fertilizer that contains higher amounts of these compared to potassium. An N-P-K ratio of 10-10-8 or similar should be effective. Additionally, applying organic material like compost during one of your annual feedings can be beneficial. If you decide to use fertilizer, it is commonly recommended to use granular fertilizer for Geiger Trees.

How do I give my Geiger Tree plant the nutrients it needs to grow?

Applying fertilizer to your Geiger Tree is an easy task that any gardener can do, even if they have little experience. To use granular fertilizer, simply sprinkle it on the soil after you've moistened it with water. Another option is to improve the soil for your Geiger Tree by adding organic materials like compost or manure. If you choose to do this, place the material on top of the soil and use a hand rake to gently work it into the top few inches of soil without disturbing the roots.

🪴 Pot & Repot 2-3 years

When repotting a Geiger Tree, select 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, making sure the root ball sits slightly lower than the rim of the flower pot. Water thoroughly after repotting and place it in a warm spot with indirect sunlight.

Suggested frequency: 2-3 years
✂️ Pruning

The Geiger Tree is known for its vibrant tubular flowers and glossy leaves. To maintain its health and appearance, it's important to prune the tree from early to late winter. During this time, remove any dead branches and crossing limbs to improve air circulation and control the tree's height. Use clean, sharp tools to ensure precise cuts, which will help promote vigorous growth and reduce the risk of disease.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Tree
Life Cycle
Perennial
Genus
Cordia
Family
Boraginaceae
Hardiness Zone
10-11
Mature Height
7.62 m to 9.14 m
Mature Spread
6.1 m to 7.62 m
Leaf Color
Green
Leaf Type
Evergreen
Flower Color
Orange, Red
Flower Size
5.08 cm
Bloom Time
Mid spring, Late spring, Summer
Planting Time
Spring, Autumn
Harvest Time
Summer, Fall
Native Area
Colombia, Bahamas, Belize, Cuba, Honduras, Mexico, Guatemala, Venezuela, Nicaragua, Costa Rica, Panama, Jamaica

Tags (3)

Common Names (16)

en Largeleaf geigertree
en Geranium-tree
en Geigertree
en Large-leaf geigertree
en Scarlet Accordia
en Broadleaf
en Dog Almond
en Scarlet cordia
en Spanish cordia
en Siricote
en Broad-leaf cordia
en Kou-haole
en Lolu
en Red cordia
en Anacahuita
en Siricote blanco