Are you attracted to striking and exotic flowers that become the centerpiece of any space? If you are looking for an ornamental plant that is easy to care for but with a great visual impact, the Jacobin, scientifically known as Meaty justice, is a perfect choice for both bright interiors and terraces, patios, and gardens. This shrub, native to South America, stands out for its showy blooms and its ability to transform any corner into a spectacle of color and freshness.
In addition to its beauty, the Jacobin plays a fundamental role in plant decoration, since fill in the blanks and attracts attention with its exotic inflorescences. Discover in depth all the Characteristics and care of the Jacobin and learn how to get the most out of this wonderful evergreen shrub.
Botanical characteristics and varieties of Jacobina (Meaty justice)

- Family: The Jacobin belongs to the Acanthaceae family and includes several species and varieties, such as Jacobinia carnea (currently called Meaty justice), Jacobinia pauciflora, Jacobinia suberecta, Among others.
- Origin: Native to tropical regions of America, mainly Brazil, Argentina, Colombia, Bolivia and Ecuador, which explains its need for warm and humid climates.
- Type: An evergreen shrub that can reach heights of 80 cm to 1,50 m, or even more under optimal conditions. Some cultivars can reach 2 m. It has an erect, sometimes slightly shrubby or herbaceous appearance.
- Sheets: It has opposite, simple, large leaves (15 to 20 cm long), leathery texture, very visible veins and an attractive dark green color, which provides a leafy and healthy appearance throughout the year.
- Flowers: The Jacobin blooms from spring to autumn, although in warm, sheltered climates it can bloom longer. Its terminal inflorescences are dense, spike-shaped or raceme-shaped, and 10 to 20 cm long. The flowers, with two-lobed, curled petals, come in intense shades ranging from soft pink to deep pink or even red. There are varieties with white, yellow, and orange flowers.
- Fruit and seeds: The fruits are capsules containing up to four seeds. They can be easily propagated from these seeds, although the preferred method is cuttings.
- Growth rate: Its growth rate is medium to fast, so you can enjoy a vigorous plant in no time, ideal for those looking for visible results in plant decoration.
- Ornamental uses: Perfect for large pots, warm-temperate climate gardens, shrubby groups, and as an indoor plant in bright environments.
Other notable Jacobins
- Jacobinia pauciflora: With smaller leaves and tubular flowers in clusters, with a reddish corolla at the base and yellow at the apex, it blooms in autumn and winter and is slightly sensitive to frost.
- Jacobinia suberecta: With orange flowers and a more compact appearance, it is also highly valued in gardening.
Where to place the Jacobin?
Choosing the right location is crucial to ensuring a healthy plant and spectacular flowering. Jacobin is versatile but appreciates the following conditions:
- Exterior: It prefers full sun or partial shade. If the weather is very hot, it appreciates some shade during the hottest hours of the day.
- Interior: If grown indoors, it requires a very bright room, next to a window but without direct and constant exposure to the sun to avoid burning the leaves.
In both cases, the Jacobin grows well on terraces, patios, and balconies protected from the wind and with good light. In areas with cold, frosty winters, it's a good idea to move the pots indoors during the harshest months or protect the plant with light covers.
Ideal environmental conditions and rusticity
- Temperature: It grows best in warm temperatures (18-25°C). It can tolerate temperatures as low as -3 or -4°C, but optimal growth is achieved in environments that do not drop below 13-15°C. Avoid severe frosts.
- Ambient: It prefers humid atmospheres, so it appreciates spraying its leaves during dry or hot months, without directly wetting the flowers.
- Protection: When temperatures below zero are expected, it's necessary to protect the plant, as it may lose its foliage and vitality. Indoors, make sure it receives light without cold drafts.
Type of soil and suitable substrate
- Flowerpot: Use a universal growing medium or a mixture of equal parts leaf mold, peat, and garden soil. Add perlite, sand, or vermiculite to improve drainage and prevent waterlogging.
- Yard: It thrives in fertile, slightly acidic, and well-drained soils rich in organic matter. It tolerates slightly acidic or neutral pH soils, but not excessive lime.
- Preparation: To improve growth, add organic fertilizer (well-rotted compost or cured manure) at least once a year and make sure the soil retains a certain amount of moisture without becoming waterlogged.
How do you water Jacobin?

- Frequency: Jacobin is demanding in terms of water during the growth and flowering period. Watering is recommended. 3-4 times a week in summer If the climate is warm and dry, spacing out to 1-2 times in winter, when the plant goes dormant.
- Water quality: If possible, use lime-free water, especially when spraying foliage, to avoid white spots and salt buildup.
- Irrigation and drainage: Make sure the pot has good drainage and that excess water doesn't remain in the bottom saucer, as prolonged contact of the roots with water promotes rot. Let the surface dry slightly before watering again.
- Spray: In the warmer months or if the environment is dry, spraying the leaves (never the flowers) helps maintain ambient humidity, preventing disease and water stress.
Fertilizing: How to properly feed Jacobin
- Time: From spring to late summer, every 2 to 3 weeks.
- Type of subscription: A specific liquid fertilizer for flowering plants, rich in potassium and sulfur, is recommended to promote flowering. Alternatively, liquid organic fertilizers such as guano or well-rotted solid fertilizers can be used.
- Organic fertilization: Two applications of cured manure (at the beginning of spring and at the end of autumn) increase the vitality of the shrub and improve the color of the leaves and flowers.
- Break: During the dormant months (winter), suspend fertilization to avoid overfeeding the plant while it is not actively growing.
Pruning and maintenance of the Jacobin
- Formation pruning: Do it in spring, removing the young shoots to achieve a more branched and leafy plant.
- Pruning after flowering: At the end of flowering, remove dead flower stems and prune long branches to strengthen the plant and encourage new flowers next season.
- Removing wilted leaves: Remove or cut leaves and flowers that are wilting to prevent disease and to direct all the plant's energy toward new growth.
- More intense pruning: If you're looking to revitalize the plant or control its size, you can cut the stems back to 10-15 cm at the end of flowering.
Multiplication and propagation
- By cuttings: The most reliable method is terminal cutting, which is done in spring or just after flowering. Use young stems about 10-15 cm long, removing the lower leaves and planting in moist, light soil. Keep in a warm, humid environment until rooting occurs.
- By seeds: You can sow the seeds contained in the capsules in spring, in trays or seedbeds with loose, moist soil. Germination occurs within a few weeks under good conditions.
- Additional tips: You can stimulate root production by covering the cuttings with a plastic bag to retain moisture. Once they develop roots, transplant them into a permanent pot or into the garden.
Transplant and planting season
- Best time: Transplanting or final planting is done in spring, when the plant resumes active growth.
- Pots: Jacobin requires pots at least 40 cm in diameter to provide sufficient space for root development.
- Yard: If you plant in a garden, leave 60-70 cm between plants to promote aeration and free growth.
- How many years to transplant: If it is in a pot, it is advisable to repot every 2 or 3 years to renew the substrate and avoid nutrient depletion.
Common pests and diseases
- Pests: It is a hardy species, but can occasionally be attacked by aphids and whiteflies, especially on young shoots or during dry periods. The cottony cushion scale also appears if hygiene is neglected. In humid environments, overwatering can promote the development of fungus and root rot.
- Prevention: Keep the plant clean, remove dried leaves and flowers, and monitor for insects. You can spray with potassium soap or specific oils if you detect pests. Avoid flooding the substrate and ensure proper drainage.
- Other problems: If the leaves turn yellow and fall, it may be due to a lack of water or fertilizer, or to cold drafts.
Additional tips for growing Jacobin
- Compatibility: Jacobin combines well with other warm-weather plants and showy flowers, such as petunias, begonias, or impatiens, in flowerbeds or planters.
- Decoration: Use Jacobean curtains to create focal points on patios, entryways, and balconies, especially if you're looking for color between spring and autumn.
- Flowering: For longer-lasting and more abundant blooms, make sure the plant receives as much light as possible without excessive direct sunlight. You can also check out this guide to learn more about the Jacobaea vulgaris care.
- Toxicity: The Jacobin it is not toxic for people or pets, so it is safe in homes.
Common mistakes and recommendations to avoid problems
- Overwatering: The main cause of problems is overwatering or water stagnation around the roots. Always monitor drainage and avoid allowing the substrate to remain saturated for many days.
- Lack of light: If you are growing your plant indoors and notice pale or drooping leaves, increase exposure to natural light.
- Lack of subscriber: Insufficient fertilization delays flowering and weakens new growth. Don't neglect fertilization during the growing season.
- Do not prune: Regular pruning stimulates branching and keeps the plant compact and vigorous.
Frequently asked questions about the Jacobin
- Is the Jacobin frost resistant? It tolerates mild, sporadic cold, but severe frost can seriously damage it. Cover it or move it into a pot if freezing temperatures are expected.
- Can it be grown indoors? Yes, as long as it receives good light and the temperature doesn't drop too low in winter.
- How do I get more flowers? Boost flowering with regular fertilization, abundant light, and pruning after each bloom.
- How do I reproduce the Jacobin? By terminal cuttings in spring and, less frequently, by seeds.
The Jacobin is a very grateful plant that, with basic care, will provide vibrant blooms and a green structure year-round. Its adaptability to different conditions (indoor and outdoor), its hardiness and low pest infestation, and its ability to serve as an ornamental focal point make it one of the best options for filling balconies, patios, and bright interior spaces with color. Learn more about the characteristics and care of the Jacobin and adds an exotic and elegant touch to your green surroundings. Enjoy its spectacular presence every season!