Solanum viarum
🍃leaf (5)
🌸flower (3)
🍎fruit (5)
🌳bark (2)
🌿habit (5)
🌱other (2)

Solanum viarum

Tropical soda-apple

Tier 1 Difficulty: easy Water: low Light: full_sun
Water every
7 days
Temperature
15–37 °C
Soil pH
5–7
Hardiness
Zone 8–11
Click count
257
Observations
210

Description

Source: leafsnap

Solanum viarum, commonly known as tropical soda apple, is a fast-growing, invasive plant species native to South America. It belongs to the Solanaceae family and is a perennial shrub that can grow up to 2 meters in height. The plant features large, deeply lobed leaves covered in fine hairs. Tropical soda apple produces small white flowers that are followed by green fruits, which turn yellow when ripe. These fruits are about the size of a golf ball and contain numerous small seeds. This plant is considered invasive because it can quickly spread through pastures, fields, and other open areas, competing with native vegetation for vital resources such as water and nutrients. Additionally, its thorny stems make it difficult for livestock to graze in areas where the plant grows. Tropical soda apple has been introduced into several countries outside its native range, including Australia, South Africa, India, China, and parts of North America, where it poses significant ecological threats due to its ability to outcompete native vegetation. Various organizations around the world, including government agencies such as the USDA (United States Department of Agriculture), have made efforts to control or eradicate this invasive species. These efforts include using methods such as herbicides and biological control agents like insects or fungi.

Care Guide

💧 Water Every 7 days

Tropical soda apple thrives in humid environments and is adaptable to different water conditions. It needs watering every 2-3 weeks, as it is neither highly moisture-dependent nor drought-tolerant. Typically grown outdoors, its growth cycle is affected by rainfall patterns, demonstrating how efficiently nature manages water.

Suggested frequency: Every 7 days
FAQ
How should I water my Tropical soda apple plant?

To ensure excellent root development, consider placing a garden hose at the base of the plant. Avoid directly spraying the leaves, as they may need more watering if exposed to direct sunlight outdoors. You can use bubblers or soaker hoses to keep the roots moist. When adding or removing plants, use soaker hoses that cover the entire garden or bed, and be sure to drain any excess water and wait for the soil to dry before watering again. Watering at ground level can help prevent diseases. On a sunny day, it may be beneficial to spray the entire bush with water. Whether your plants are potted or in-ground, remember that Tropical soda apple prefers deep watering rather than light sprinkling.

What should I do if I give too much or too little water to Tropical soda apple?

Overwatering can cause a Tropical soda apple plant to display several signs of distress. The leaves may turn yellow, drop off, and wilt, giving the plant a dull and unhealthy appearance. Mushy stems may also be present. It is important to adjust your watering schedule once these signs begin to show. However, wilting can also indicate under watering, with the leaves becoming crispy and dry. If the soil is dry and watering alone is not sufficient, a thorough watering is needed. This will help the Tropical soda apple recover, although the plant may still have dry, yellow leaves for a few days due to damage to the root system. Once the plant returns to normal, the yellowing of leaves will cease. Indoors, always check the moisture levels in the pot when caring for the Tropical soda apple. Avoid overwatering and be on the lookout for signs of black spots. If present, allow the soil to dry out by refraining from watering for a few days. Overwatering can lead to root rot, which can be identified by discolored and slimy roots. In such cases, consider transferring the plant to a different pot. To prevent root rot, avoid keeping the soil too soggy. When planting the Tropical soda apple outdoors, dig a bit deeper into the soil. If the soil feels excessively dry when checked with your fingers, it may indicate under watering. Adequate watering is necessary to facilitate the plant's recovery.

How often do I need to water my Tropical soda apple plant?

The Tropical soda apple prefers deep and infrequent watering. If they are in pots, they need to be soaked in a gallon of water each time because pots have limited water storage and the soil dries out quickly. In cold regions, watering is needed every 3 to 5 days. Water the plant early in the morning when the soil is dry, both indoors and outdoors. You can also check the moisture level by examining the soil. If the top 2-3 inches are dry, it's time for a full watering. On hot days, the soil in pots can dry out rapidly, so monitor the moisture regularly. If you have a garden, irrigation is necessary. In hot climates, watering once a week is recommended. Pay attention to the soil; if it becomes too dry, about 2-3 inches deep, water the plants. However, be aware of any rainfall, as excessive water can lead to root rot. Tropical soda apple usually grows in spring and fall. Outdoors, adding 3-4 inches of mulch can help conserve water. Sandy soil requires more frequent watering due to faster drainage, while clay soil needs less watering to avoid root rot. Keep track of when you water the plants and if you notice drooping leaves, it may indicate a need for water. Mark the dates on a calendar to stay organized.

How much water does my Tropical soda apple need?

The Tropical soda apple generally needs about a gallon of water on a regular schedule. For potted plants, water them deeply until the water drips from the bottom of the pot, then wait for the soil to dry before watering again. Use a water calculator or moisture meter to track how much water you give the plant in a week. Water generously during the flowering period, but let the excess moisture evaporate to prevent root rot. If the Tropical soda apple is planted outside with sufficient rainfall, additional watering may not be necessary. However, when the plant is young or newly planted, ensure it receives 1-2 inches of rain per week. As the Tropical soda apple grows, it can rely solely on rainfall. Only water it fully during hot weather or in the absence of rain for 2-3 weeks, preferably during cooler parts of the day to avoid heat damage. Additional watering is needed during prolonged dry spells.

Should I change how often I water my Tropical Soda Apple plant depending on the time of year or the weather conditions?

To ensure the healthy growth of Tropical soda apple plants, it is important to provide appropriate watering conditions throughout the different seasons. During spring and fall, the soil should be kept consistently moist, but not overly saturated. It is beneficial for the soil to alternate between periods of dryness and moisture to promote optimal growth. In the summer, hot weather can cause water to evaporate quickly, so additional watering may be necessary if there is a lack of rainfall. Conversely, during winter when the plants go dormant and lose their leaves, less water is generally required. It is recommended to use a well-draining but moisture-retentive soil mixture, such as terracotta, to aid in evaporation. During the dormant period, watering can be skipped as the Tropical soda apple can rely on rainfall. When the temperature becomes warmer in spring, cultivation and encouragement of growth can begin. It is important to ensure good drainage at all times, particularly during winter, as the plant does not tolerate excessive water. When planted in pots, the limited root growth of the plant makes it necessary to keep it well-watered, especially during summer. Shallow sprinkles should be avoided as they encourage fungal growth and do not reach deep into the roots. Even during fall and winter dormancy, it is crucial to prevent the plants from drying out completely. Watering should be done diligently, with deep soakings at least once or twice a week, depending on the weather. However, it is essential to avoid overwatering and ensure proper drainage to prevent waterlogging, which can be fatal for the plants, especially during winter. Applying mulch can help reduce stress, conserve water, and promote healthy blooming.

☀️ Light Full sun

Tropical soda apple thrives in strong sunlight similar to that of its native habitat. Plenty of sun noticeably promotes its vigor and growth. It can tolerate short periods of lower light, but extended durations of weak sunlight can impede its development. Both excessive and insufficient sunlight can harm the plant's health.

Ideal: Full sun
FAQ
What are the sunlight requirements for Tropical Soda Apple?

Tropical Soda Apple thrives in full sun, requiring above 6 hours of sunlight per day, but can also tolerate partial sun, about 3-6 hours of sunlight daily. It's essential to watch how sunlight moves through your garden to find the ideal spots that offer a balance of light and shade, ensuring your plant's optimal growth and happiness.

How important is sunlight for the growth of Tropical Soda Apple?

Sunlight is crucial for the growth and health of Tropical Soda Apple, mimicking its native environment's robust solar conditions. While the plant can endure periods of weaker sunlight, prolonged lack of sufficient light can impede its development. Both overexposure and underexposure to sunlight can have adverse effects on the plant's health.

Can artificial lighting be used for Tropical Soda Apple, and if so, how?

Yes, artificial lighting can be used for Tropical Soda Apple, especially when natural sunlight is insufficient, such as in winter or less sunny spaces. Indoor plants benefit greatly from artificial lights, promoting faster, healthier growth. LED lights are a popular choice because they can provide specific wavelengths needed by the plants. Full sun plants require 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft. The light source should be placed 12-36 inches above the plant, mimicking natural sunlight, for 8-12 hours per day.

What symptoms indicate insufficient light for Tropical Soda Apple?

Symptoms of insufficient light in Tropical Soda Apple include smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, and symptoms of excessive sunlight exposure like chlorosis, sunscald, leaf curling, wilting, and leaf scorching. These symptoms suggest the plant is not receiving optimal light conditions, leading to various health problems.

What solutions are recommended for Tropical Soda Apple facing insufficient sunlight?

For Tropical Soda Apple facing insufficient sunlight, gradually move indoor plants to sunnier locations to receive at least 6 hours of direct sunlight, using south-facing windows for maximum exposure. Consider artificial light for larger plants. For outdoor plants, move them gradually to sunnier spots to avoid sunburn. Minimize obstructions by pruning trees that block sunlight and consider transplanting smaller plants to locations with ample sunlight and good drainage. Remember, parts of the plant that suffered from low light may not recover, but new growth should be healthy after adjusting light exposure.

🌡️ Temperature 15–37.8°C

Tropical soda apple originates from tropical and subtropical areas and thrives in temperatures of 59 to 100 °F (15 to 38 °C). If temperatures drop in winter, it should be brought indoors to a warmer environment.

Ideal temperature: 15–37.8°C
FAQ
What is the native habitat of the Tropical Soda Apple?

The Tropical Soda Apple is native to tropical and subtropical regions. It thrives best in temperatures ranging from 59 to 100 °F (15 to 38 °C).

What should I do with my Tropical Soda Apple plant during winter?

During winter, if temperatures are expected to drop, it's advised to move the Tropical Soda Apple plant to a warmer, indoor environment. The plant has some cold tolerance and does not require additional measures if the temperature remains above -5°C. However, if temperatures are expected to drop below -5°C, temporary measures for cold protection, such as wrapping the plant with plastic film, fabric, or other materials, should be taken. Once temperatures rise again, these protective measures should be removed.

How does the Tropical Soda Apple react to low temperatures?

The Tropical Soda Apple has moderate tolerance to low temperatures and thrives best when temperatures are above 15°C. It should be kept above -5°C during winter. When temperatures fall below -10°C, the leaves may droop. They can recover in mild cases, but in severe scenarios, the leaves will wilt and eventually fall off.

What should I do if my Tropical Soda Apple experiences low temperatures?

If the Tropical Soda Apple experiences low temperatures, particularly below -10°C, it's recommended to trim off the frost-damaged parts of the plant. To prepare for future cold weather, wrap the plant with non-woven fabric or cloth and construct a wind barrier to protect it from cold winds.

How does the Tropical Soda Apple react to high temperatures?

During summer, the Tropical Soda Apple should be kept below 38°C to avoid stress. Exposing the plant to temperatures above 43°C can cause the leaves to lighten in color, dry out, and wither, especially at the tips. The leaves may also curl, and the plant becomes more susceptible to sunburn under these conditions.

💨 Humidity
Humidity:
🪴 Soil 5-7
Soil pH: 5-7
🌱 Fertilizer

Fertilize your Tropical soda apple in early spring to encourage healthy growth. Regular feeding improves its overall health, producing vigorous growth, greater toughness in difficult conditions, and enhanced resistance to diseases and pests. Keep to a specific fertilization schedule for your Tropical soda apple to maintain vibrant, deeply colored foliage and a lush appearance.

🪴 Pot & Repot
✂️ Pruning

The tropical soda apple has thorny stems and lobed leaves. To encourage healthy growth and reduce its invasiveness, it is important to prune it in early spring. Trim any dead or damaged parts to help maintain its size and improve air circulation. This supports robust regeneration and curtails its aggressive spread, leading to a healthier garden environment.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Shrub
Life Cycle
Perennial
Genus
Solanum
Family
Solanaceae
Hardiness Zone
8-11
Mature Height
1.22 m to 1.83 m
Mature Spread
1.83 m
Leaf Color
Green, Dark Green
Leaf Type
Semi-evergreen
Flower Color
White
Flower Size
2.54 cm
Bloom Time
All year round
Planting Time
Spring, Summer, Autumn
Harvest Time
All year round
Native Area
Uruguay, Colombia, Bolivia, Peru, Brazil

Tags (4)

Common Names (1)

en Tropical soda-apple