Watsonia meriana — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Watsonia meriana

Watsonia Meriana

Updated · 149 observations
ON THIS PLANT

Watsonia meriana is a species of flowering plant in the family Iridaceae known by the common name bulbil bugle-lily. It is one of several Watsonia species known as wild watsonia. It is native to the Cape Provinces of South Africa, but it is well known as an ornamental plant grown in gardens for its showy spikes of flowers, and is an invasive species in areas where it has escaped cultivation.

A note from PlantMom

Bulbil bugle-lily is fairly disease-resistant and generally not prone to illness. However, it can be affected by pests and diseases in its surroundings. These problems are usually mild. Regarding care, this plant needs a moderate amount of maintenance. It should be pruned regularly to keep a tidy appearance and encourage healthy growth. Fertilizing can also help boost flowering. Bulbil bugle-lily is appropriate for anyone with outdoor space, such as a garden or patio, and does not call for extensive care experience. It may need more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Watsonia Meriana.

Light

Bulbil bugle-lily is a sun-loving, perennial herbaceous plant native to open habitats and commonly found in meadows and grasslands. It prefers full sun but can also tolerate partial sun.

Water

The bulbil bugle-lily thrives in environments with alternating wet and dry periods and demonstrates moderate drought tolerance. For optimal health, it benefits from weekly watering. As a bulbous plant, it can store water, allowing it to survive dry spells. This characteristic makes it well-suited for outdoor cultivation when supplemented with additional irrigation.

Temperature

Bulbil bugle-lily can tolerate a wide range of temperatures, but its range may still be constrained by different combinations of moisture and heat. It does best in warm summer climates with sufficient rainfall or regular watering. Long periods of overcast, rainy weather, as well as extended high temperatures, can raise the chance of the plant dying. In winter, suitable protection from cold can increase its survival rate.

Fertilizer

The optimal time to fertilize a Bulbil bugle-lily is in early spring, as it comes out of dormancy and begins active growth. Fertilizing supplies essential nutrients for healthy growth. Although the Bulbil bugle-lily has relatively low fertilizer requirements, an annual application can improve its survival and promote better, longer-lasting flowers.

Pruning

The Bulbil Bugle-Lily is a vibrant perennial known for its ease of propagation through bulbils. To encourage healthy growth and abundant blooms, prune the plant in early to late spring by trimming back spent flower spikes and removing any dead leaves. Additionally, removing excess bulbils can prevent overcrowding and improve the plant's overall health.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial
Genus
Watsonia
Family
Iridaceae
Hardiness Zone
8-11
Mature Height
76 cm
Mature Spread
76 cm
Leaf Color
Dark Green
Leaf Type
Deciduous
Flower Color
Pink
Flower Size
5.08 cm to 6.35 cm
Bloom Time
Summer
Planting Time
Spring, Summer, Autumn
Harvest Time
Late summer, Early fall, Mid fall
Native Area
South Africa
ALSO KNOWN AS

Other names.

en Wild watsonia en Bugle-lily en Bulbil watsonia en Bulbil bugle-lily en Marian's bugle lily
FREQUENTLY ASKED

Reader questions.

How should I water my Bulbil bugle-lily?

To properly water the Bulbil bugle-lily, it is recommended to use filtered water at room temperature. Tap water may contain harmful particles, making filtered water the better choice. Since the Bulbil bugle-lily is accustomed to warm environments, it is best to avoid using cold water as it may shock the plant. Additionally, overhead watering should be avoided to prevent foliage complications. Instead, the filtered room temperature water should be applied directly to the soil until it is completely soaked. This method of watering helps to moisten the roots and aid in their continued spread through the soil, gathering necessary nutrients.

Why is it necessary to fertilize my Bulbil bugle-lily?

The main structure of the Bulbil bugle-lily is made up of its leaves. Fertilization is an impactful way to ensure that these leaves not only look great but also serve their function effectively. Proper fertilization will result in consistent color and a healthy texture of the leaves. Additionally, fertilization also works beneath the soil's surface to help the plant develop new roots and maintain existing ones. This means that fertilization not only keeps the plant healthy in the present but also enables it to absorb soil nutrients more effectively in the future.

What are the sunlight requirements for Bulbil bugle-lily?

Bulbil bugle-lily thrives best in conditions where it receives more than 6 hours of sunlight daily, favoring full sun exposure. However, it can also tolerate partial sun. Observing sunlight movement through your garden helps in selecting spots with the ideal balance of light and shade for the plant's optimum growth. This ensures the plant remains healthy and happy in its environment.

What should I do if I give too much or too little water to my Bulbil bugle-lily?

Both overwatering and underwatering can harm your Bulbil bugle-lily, but overwatering is more common and problematic. Too much water can cause wilting, yellowing of stems and leaves, and increase the risk of diseases like root rot, mold, and mildew that can kill your plant. Although underwatering is less likely, it can still happen and cause brittle, brown leaves. It is important to promptly identify signs of overwatering and take action to reduce watering. If the soil drains poorly, replace it with a loose, well-draining potting mix. Conversely, if your plant is not getting enough water, simply increase the watering frequency until the signs improve.

When should I fertilize my Bulbil bugle-lily plant for the best results?

If you have an outdoor Bulbil bugle-lily, it will start growing new leaves in early spring. This is a sign that it's time to start fertilizing for the year. Usually, one application of fertilizer in the spring is enough for a Bulbil bugle-lily to thrive. But if you want to maximize its growth, you can fertilize it multiple times throughout the spring and early summer. In this case, you can feed your Bulbil bugle-lily once every month to a month and a half.

What essential conditions does Bulbil bugle-lily need?

The Bulbil bugle-lily is a sun-loving perennial and herbaceous plant that originally grows in open habitats like meadows and grasslands. It prefers full to partial sun conditions. When natural sunlight is insufficient, especially in winter or areas that receive less sun, artificial lighting can be an excellent alternative. Proper artificial lighting, such as LED lights providing 30-50W/sq ft for full sun plants, 20-30W/sq ft for partial sun plants, and 10-20W/sq ft for full shade plants, is crucial. It's important to adjust the distance (12-36 inches above the plant) and the duration (8-12 hours per day) of artificial lighting to mimic natural sunlight conditions.

How often do I need to water my Bulbil bugle-lily?

If your Bulbil bugle-lily is in a pot, the most precise way to determine if it needs water is by checking the soil. Simply stick your finger into the soil and if the first two to three inches are dry, it's time to water it. If your Bulbil bugle-lily is planted outdoors in the ground, you can use a similar method to test the soil. Once you notice that the first few inches of soil have dried out, it's a signal to water the plant. During spring and early fall, following this method will usually mean watering once every week. However, during extremely hot weather, you may need to increase watering to twice or more per week. Nevertheless, mature and well-established Bulbil bugle-lilies have a remarkable ability to tolerate drought.

When should I not put fertilizer on my Bulbil bugle-lily?

During the late fall and winter, your Bulbil bugle-lily will go into a dormant phase, and it won't produce new growth. So, it's best not to fertilize it during this time. In the spring and summer, if you decide to fertilize, start reducing the amount as summer approaches because the growth rate of your Bulbil bugle-lily will slow down. Overall, it's not a good idea to fertilize your Bulbil bugle-lily when the weather is very hot or the soil is extremely dry. Fertilizing in these conditions can stress the plant and cause it to die prematurely.

What are common symptoms of inadequate lighting for Bulbil bugle-lily?

When Bulbil bugle-lily doesn't receive enough light, it may exhibit several symptoms indicating poor lighting conditions: smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, pale or irregularly colored new leaves, chlorosis (yellowing leaves), sunscald, leaf curling, wilting, and leaf scorching. These symptoms arise from the plant struggling due to insufficient sunlight which is crucial for its growth and overall health.

How much water does my Bulbil bugle-lily require?

When watering your Bulbil bugle-lily, don't be afraid to give it a generous amount of water. Wait until the top few inches of soil are dry, then water thoroughly until the soil is completely soaked. Make sure to water enough so that excess water flows out of the drainage holes at the bottom of your pot. If you don't see any excess water draining out, it's likely that you haven't watered enough. However, be careful not to let water accumulate in the soil, as this can be harmful to the plant. On the other hand, if water is not draining properly from the pot, it could mean that the soil doesn't have good drainage, which is not good for the plant's health. If the plant is outdoors, receiving about 1 inch of rain per week should be enough.

What kind of fertilizer does my Bulbil bugle-lily need?

Choosing the right fertilizer for a Bulbil bugle-lily is thankfully an easy task. These plants do well with a general-purpose garden fertilizer that contains equal amounts of nitrogen, phosphorus, and potassium. Look for a fertilizer with a ratio of 10-10-10 or something similar for best results. Avoid fertilizers with high nitrogen levels if you're uncertain. Granular fertilizers are commonly recommended for Bulbil bugle-lilies, preferably with a slow-release formula for easier application. Additionally, feeding your plant with organic soil amendments like compost can be beneficial.

How can I remedy Bulbil bugle-lily's light deficiency symptoms?

To address light deficiency in Bulbil bugle-lily, gradually increase its exposure to sunlight. If indoors, move it closer to a south-facing window or use artificial lighting, such as desk, ceiling, or professional plant grow lights, for at least 8 hours a day. For outdoor plants, relocate them gradually to sunnier spots to prevent sunburn, noting that parts of the plant already damaged by insufficient light may not recover, but new growth should be healthy. Minimizing obstructions, such as pruning trees that block sunlight, or transplanting to a sunnier location, can also significantly improve sunlight access. Always remember to adapt these measures according to whether your plant is indoors, outdoors, or in the ground to stimulate healthy new growth.

PLATES
Watsonia meriana leaf
PLATE 01 · leaf
Watsonia meriana leaf
PLATE 02 · leaf
Watsonia meriana flower
PLATE 03 · flower
Watsonia meriana flower
PLATE 04 · flower
Watsonia meriana fruit
PLATE 05 · fruit
Watsonia meriana fruit
PLATE 06 · fruit
ALSO IN THE LIBRARY

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