Lathyrus tuberosus
πŸƒleaf (5)
🌸flower (5)
🍎fruit (5)
🌳bark (5)
🌿habit (5)
🌱other (5)

Lathyrus tuberosus

Earth-chestnut Β· Earthnut-pea Β· Groundnut peavine Β· Tuberous-pea Β· Tuberous-vetch

Tier 1 Difficulty: medium Water: low Light: full_sun
Water every
7 days
Temperature
5–35 Β°C
Soil pH
6–7
Hardiness
Zone 5–9
Click count
136
Observations
1,843

Description

Source: leafsnap

Lathyrus tuberosus, commonly known as the tuberous pea or earthnut pea, is a perennial plant in the Fabaceae family. Native to Europe and western Asia, it thrives in meadows, hedgerows, and woodland edges. This climbing plant can reach up to 1 meter in height and produces clusters of pink or purple flowers from May to July. One of the most distinctive features of Lathyrus tuberosus is its edible underground tubers, which resemble small potatoes. These starchy roots have been used as a food source for centuries in Europe and were once a significant crop for rural communities. The leaves of Lathyrus tuberosus are compound, with two oval-shaped leaflets that have pointed tips. The plant's stems are slender yet strong enough to support its climbing habit. Lathyrus tuberosus prefers well-drained soil in full sun or partial shade, but it can tolerate various soil types, including sandy soils. Once established, it is also drought-tolerant. Besides its culinary uses, Lathyrus tuberosus has been used medicinally for its diuretic properties and as an anti-inflammatory agent for treating rheumatism. Overall, Lathyrus tuberosus is an intriguing perennial plant with both culinary and medicinal uses. It adds beauty and diversity to any garden landscape while offering food security options for those who include it in their diet.

Care Guide

πŸ’§ Water Every 7 days

The tuberous pea is native to temperate regions and thrives in environments with moderate moisture. While it requires watering once a week, it can withstand short periods of dryness. As an herbaceous perennial, the tuberous pea is best suited for outdoor locations, where it can take advantage of natural rainfall during its active growing season.

Suggested frequency: Every 7 days
FAQ
How should I water my Tuberous pea plant?

To properly water the Tuberous pea, it's best to use filtered water at room temperature. Tap water may contain harmful particles, so filtered water is safer for the plant. The water should be at room temperature or slightly warmer because the Tuberous pea is accustomed to warm climates and cold water can shock its system. It's important to avoid overhead watering and instead, water the soil directly until it is completely soaked. This helps the plant by moistening the roots and encouraging their spread through the soil to gather necessary nutrients.

What should I do if I give my Tuberous pea plant too much water or too little water?

Both overwatering and underwatering can harm the health of your Tuberous pea, but overwatering is more commonly seen. Excess water can cause wilting and yellowing of the stems and leaves, and can also lead to root rot, mold, and mildew, all of which are deadly for your plant. Tuberous peas are generally better at tolerating drought, so underwatering is less likely. However, if it does occur, the leaves may become brittle and brown. It is important to recognize the signs of overwatering early on, as some conditions like root rot may not be reversible if left untreated for too long. If you notice early signs of overwatering, reduce your watering schedule and check the soil quality. If the soil does not drain well, replace it with a loose, well-draining potting mix. If you suspect underwatering, simply water more regularly until the signs improve.

How frequently do I need to water my Tuberous pea plant?

If your Tuberous pea plant is in a pot, the most precise way to determine if it needs water is by checking the soil. Stick your finger into the soil and if the first two to three inches are dry, it's time to water. If you're growing the Tuberous pea plant outdoors in the ground, you can use the same method. Check the first few inches of soil and if it's dried out, add water. Normally, during spring and early fall, you'll need to water this plant about once a week using this method. However, when it's very hot, you may need to increase watering to about twice a week or more. Nonetheless, mature and well-established Tuberous pea plants have an impressive ability to withstand drought.

How much water does my Tuberous pea plant require?

To properly water your Tuberous pea plant, don't shy away from giving it a generous amount of water. Make sure the top two to three inches of soil are dry before watering and then thoroughly soak the entire soil. The water should be enough to cause excess water to flow out of the drainage holes at the bottom of the pot. If you don't see water coming out, you haven't watered it enough. However, be careful not to let water accumulate inside the soil, as this can harm the plant. On the other hand, if water doesn't drain properly, it could indicate poorly draining soil, which is bad for the plant's health. If the plant is outside, one inch of rain per week is sufficient.

How do I properly water my Tuberous pea as it grows at different stages?

The watering needs of the Tuberous pea can vary depending on its growth stages. In the first few years of its life or when recently transplanted, it requires more water. During these stages, the plant focuses on growing new roots to support future growth, and these roots require extra moisture. As the plant matures over a few seasons, it will require less water. Additionally, during its bloom period, the Tuberous pea may need more water as flower development utilizes a significant amount of moisture.

β˜€οΈ Light Full sun

The tuberous pea grows most successfully when given plentiful light that imitates the conditions of its native habitat. However, both too much and too little light can harm its health. A steady supply of sufficient light at every stage of growth helps preserve its vigor and increases the chances of healthy growth and development.

Ideal: Full sun
FAQ
What are the sunlight requirements for Tuberous Pea?

Tuberous Pea, or Lathyrus tuberosus, thrives best in areas that receive full sun, defined as above 6 hours of sunlight, or partial sun, about 3 to 6 hours of sunlight. It's crucial to monitor the movement of sunlight through your garden to find spots that offer the right balance of light and shade, ensuring the plants receive the optimal conditions for their growth and happiness.

How important is light for the growth of Tuberous Pea?

Light is fundamental for the Tuberous Pea, mimicking the abundant light conditions of its native habitat is crucial for its health. Both inadequate and excessive light exposure can negatively affect the plant's growth. Throughout its growth stages, a continuous supply of adequate light is essential for maintaining its vigor, which in turn facilitates healthy growth and development. For indoor plants, artificial lighting becomes critical in places where natural sunlight is insufficient, especially during winter or in less sunny spaces, with LED lights being a popular choice because they can be customized to provide specific wavelengths needed by the plants.

What symptoms indicate light deficiency in Tuberous Pea?

Symptoms of light deficiency in Tuberous Pea include smaller new leaves compared to older ones, leggy or sparse growth, early leaf drop to conserve resources, delayed growth or cessation of growth, lighter colored or irregularly colored new leaves indicating a lack of chlorophyll, and conditions like chlorosis, sunscald, leaf curling, wilting, and leaf scorching which indicate various stresses due to inadequate sunlight. These symptoms help identify when the plant is not receiving enough light and needs to be placed in a better-lighted area.

What solutioncan be applied for Tuberous Pea experiencing light deficiency?

For Tuberous Peas suffering from light deficiency, a gradual adaptation to more sunlight is advisable. This includes moving them to sunnier spots progressively each week to reach at least 6 hours of direct sunlight daily, especially for outdoor plants. For indoor plants too large or not easily movable, using artificial lighting such as desk or ceiling lamps for at least 8 hours a day or investing in professional plant grow lights can provide sufficient light. Additionally, measures like reducing obstructions that block sunlight or transplanting smaller plants to sunnier locations during their dormant period can significantly improve light exposure.

🌑️ Temperature 5–35Β°C

Tuberous pea is native to temperate regions and does best in temperatures between 41 and 95 Β°F (5 and 35 ℃). Temperature adjustments should be made in extreme seasons to protect it from freezing or overheating.

Ideal temperature: 5–35Β°C
FAQ
What temperature is best for Tuberous pea?

The ideal temperature for Tuberous pea depends on the time of year. There are two main seasons to consider: the growing season and the dormancy season. During the growing season, when the plant starts to sprout, the best temperature range is between 65-80℉(18-27℃). If it gets colder than 15℉(-10℃), the plant will suffer and its leaves may turn brown and wilt. However, if it's only a short cold snap, the Tuberous pea may survive with some assistance. On the other hand, during the warmer months, it's important to protect the Tuberous pea from excessively high temperatures. The top temperature range for this plant is 95-105℉(35-40℃), as anything above that can harm the leaves and blooms. High temperatures can cause wilting, drooping, and even sunburn, which may be challenging for the Tuberous pea to recover from. Fortunately, there are several simple and quick methods to address this issue.

What temperature does the Tuberous pea need in its first year or as a seedling?

If you are growing Tuberous pea outside for the first time, it may require extra care during the cold months. Frost can cause significant damage to a first-year Tuberous pea and prevent it from regrowing in the spring. To protect it, make sure the temperature does not drop below 40℉ (5℃). This can be achieved by bringing the plant indoors or using mulch or fabric barriers to shield it from frost. Additionally, it is recommended to plant the Tuberous pea in a shadier area during the first year or two. Smaller and weaker plants struggle to maintain their own temperature in hot weather, so limit their direct sunlight exposure to a maximum of five hours per day. In particular, if the temperature exceeds 80℉ (27℃), use shadecloth and regularly water or mist the plant to keep it cool.

How do I keep Tuberous pea plants safe from very hot or very cold temperatures?

During the growing season, if the temperature drops below 15℉ (-10℃), there are measures you can take to protect Tuberous pea from frost or cold damage. If you are growing Tuberous pea in a container, simply bring it indoors where it can receive bright, indirect light until temperatures rise above the lower threshold. For Tuberous pea planted in the ground, use mulch or horticultural fabric to create a barrier that insulates the plant and protects it from frost and cold wind. On the other hand, if temperatures rise above 80℉ (27℃) in the shade during the day, take caution in exposing Tuberous pea to sunlight for no more than six hours per day, preferably in the morning. To reduce direct sunlight during the hottest parts of the day, consider using shade cloth or a fine plastic mesh. Another option is to install a misting system that releases cooling mist around the base of the plant, helping to lower ground temperatures throughout the day.

Recommendations for Tuberous pea during the dormant season temperatures.

Tuberous pea requires a certain amount of cold in winter to stay dormant until it's time to sprout. If it sprouts too early, before the danger of frost has passed, it can be fatal, especially if it's already started growing when the frost hits. Ideally, winter temperatures should be below 32℉(0℃), but up to 40℉(5℃) is okay. In more temperate climates, like woodland rainforests, an unexpected warm period in winter can cause Tuberous pea to sprout prematurely. If there's still a risk of frost, you can cover it with clear plastic on stakes to protect the new sprout. This cover can be removed once the danger of frost has passed. Sometimes, Tuberous pea will naturally sprout at the right time without any assistance, but using this method increases the chance of successful second sprouting.

πŸ’¨ Humidity
Humidity:
πŸͺ΄ Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

For Tuberous pea, the key time to apply fertilizer is in early spring when the flowers are developing. The proper fertilizer promotes stronger blooms and helps the Tuberous pea produce attractive flowers. Fertilizing in early spring ensures excellent flowering during the season and supplies energy for dormant growth stages.

FAQ
Why should I add fertilizer to my Tuberous pea plant?

The Tuberous pea's leaves are essential to its structure and appearance. Fertilization is vital for ensuring that the leaves not only look great but also function properly. This includes maintaining consistent color and a healthy texture. Fertilization also benefits the plant below the soil's surface by promoting the growth of new roots and maintaining the existing root system. This not only keeps the plant healthy in the present but also improves its ability to absorb nutrients from the soil in the future.

When should I fertilize my Tuberous pea plant?

When you grow your Tuberous pea outside, it will start to grow new leaves in early spring. This is the signal to start fertilizing for the year. Usually, one application of fertilizer is enough for the Tuberous pea, but if you want maximum growth, you can fertilize multiple times in spring and early summer. If you choose to do this, feed the Tuberous pea once every month to a month and a half.

When is it not a good idea to fertilize my Tuberous pea?

During the late fall and winter, your Tuberous pea goes into dormancy and stops producing new growth. To avoid any issues, it is best to not fertilize your Tuberous pea during this time. In spring and summer, if you choose to use fertilizer, it is important to start reducing the amount as summer approaches because the growth rate of your Tuberous pea will also slow down. It is never a good idea to fertilize your Tuberous pea when the weather is excessively hot or the soil is very dry, as it can cause stress and lead to premature death.

What kind of fertilizer does my Tuberous pea plant need?

Choosing the best fertilizer for a Tuberous pea is simple. A general-purpose garden fertilizer with equal amounts of nitrogen, phosphorus, and potassium, like a 10-10-10 ratio, is effective. Avoid fertilizers with high nitrogen. Granular, slow-release fertilizers are recommended and easy to apply. Using an organic soil amendment like compost can also be beneficial for your Tuberous pea.

How do I make my Tuberous pea plant grow better?

To fertilize your Tuberous pea, wait until you see the first leaves breaking through the soil in early spring. Then, apply a granular slow-release fertilizer with a balanced formula around the base of the plant. You may choose to repeat this process later in the season. When reapplying fertilizer, make sure to target the soil at the base of the plant, not the plant itself. Sometimes, you may need to move the leaves aside to access the soil around the roots. Additionally, it's a good idea to water your Tuberous pea before and after fertilizing.

πŸͺ΄ Pot & Repot
βœ‚οΈ Pruning

The tuberous pea is a perennial vine known for its beautiful flowers and tuberous roots. To encourage healthy growth and blooming, prune between early and late spring. Focus on removing damaged stems and thinning out overcrowded areas, but be careful to avoid heavy pruning, as this can stress the plant. For detailed guidance, consult reliable sources.

🌿 Propagating
πŸ› Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb, Vine
Life Cycle
Perennial
Genus
Lathyrus
Family
Fabaceae
Hardiness Zone
5-9
Mature Height
1.22 m
Mature Spread
61 cm
Leaf Color
Green, Blue
Leaf Type
Deciduous
Flower Color
Pink
Flower Size
1.27 cm to 2.03 cm
Bloom Time
Summer
Planting Time
Spring, Summer
Harvest Time
Late summer, Early fall, Mid fall
Native Area
Turkey, Austria, Slovakia, Montenegro, Slovenia, Croatia, Belarus, Uzbekistan, Russia, Germany, Romania, Belgium, Moldova, Netherlands, France, Tajikistan, Czech Republic, Bulgaria, Armenia, Poland, Greece, Ukraine, Serbia, China, Kyrgyzstan, Kazakhstan, Italy, Spain, Switzerland, Iran, Albania, Azerbaijan, Algeria, Hungary, Turkmenistan

Tags (5)

Common Names (14)

en Earth-chestnut
en Earthnut-pea
en Groundnut peavine
en Tuberous-pea
en Tuberous-vetch
en Ground nut pea
en Tuberous sweetpea
en Earth-nut Pea
en Tuberous Vetchling
en Earth-nut Peavine
en Earth-nut Vetchling
en Fyfield Pea
en Tuberous Sweet Pea
en OreşniΕ£Δƒ