Leek vs Paw Paw Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Leek

Leek

Allium ampeloprasum var. porrum

VS
Paw Paw

Paw Paw

Asimina triloba

Leek

Leek

Allium ampeloprasum var. porrum

The leek is a biennial plant, typically grown as an annual, belonging to the onion family. It features a cylindrical bundle of leaf sheaths, often blanched white, that gradually transitions into flat, green leaves. Leeks lack a bulb like onions, instead developing a thickened stem base. Primarily grown outdoors in gardens for culinary use, leeks are valued for their mild, onion-like flavor. They are not typically grown indoors due to their size and high light requirements. Leeks can reach a height of 30-60 cm.

Amaryllidaceae Likely native to the eastern Mediterranean region and the Middle East.
✨ Features: Edible plant with a mild onion-like flavor.
📖 Read Complete Leek Guide
Paw Paw

Paw Paw

Asimina triloba

Asimina triloba, the Pawpaw, is a deciduous tree or large shrub native to eastern North America. It typically grows 10-25 feet tall. It features large, oblong leaves that give it a tropical appearance. The tree produces edible fruit, the pawpaw, which is greenish-yellow to brown when ripe and has a creamy texture and flavor reminiscent of banana, mango, and vanilla. Pawpaws are primarily grown for their fruit, which can be eaten fresh or used in desserts and beverages. It is not naturally an indoor plant and requires specific conditions to thrive indoors.

Annonaceae Eastern United States and Canada
✨ Features: Edible fruit, attractive foliage, native to North America.
📖 Read Complete Paw Paw Guide

Quick Plant Comparison

Feature Leek Paw Paw
Light Full sun (at least 6-8 hours of direct sunlight daily) Full sun to partial shade outdoors. Requires at least 6 hours of direct sunlight for optimal fruit production.
Watering Every 2-5 days, depending on weather and soil drainage Weekly during the first year, then as needed during dry periods (outdoors).
Humidity 40-60% 40-60%
Temperature 13-24°C 10-30°C
Care Level Expert Expert
Growth Rate Moderate Moderate
Max Height N/A (Typically grown outdoors) Difficult to predict indoors, typically 1-3 meters in a very large container. Outdoors: 3-8 meters.
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining, fertile soil rich in organic matter. A slightly acidic to neutral pH (6.0-7.0) is ideal. Well-drained, fertile soil with a slightly acidic to neutral pH (5.5-7.0).
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 15 minutes weekly 1-2 hours weekly (outdoors, during growing season)

🔬 Botanical Information — Comparing These Plants

Leek

Scientific Name Allium ampeloprasum var. porrum
Family Amaryllidaceae
Native To Likely native to the eastern Mediterranean region and the Middle East.
Also Known As Leek, Garden Leek
Leaves Flat, strap-like leaves that are typically green to bluish-green in color. They are arranged in a fan-like pattern at the top of the plant.
Flowers Leeks rarely flower when grown as an annual crop. If allowed to overwinter, they will produce a spherical umbel of white or pale purple flowers.

Paw Paw

Scientific Name Asimina triloba
Family Annonaceae
Native To Eastern United States and Canada
Also Known As Pawpaw, Paw Paw, Common Pawpaw, American Custard Apple
Leaves The leaves of the pawpaw tree are large, oblong, and deciduous, typically measuring 15-30 cm long and 8-13 cm wide. They are a vibrant green color in the spring and summer, turning yellow in the fall before dropping. The texture is smooth and slightly leathery.
Flowers Pawpaw trees produce maroon to purplish-brown flowers in the spring before the leaves emerge. The flowers are about 2-5 cm in diameter and have a slightly unpleasant odor that attracts pollinators like flies and beetles. Fruiting indoors is extremely rare.

📏 Size & Growth — Plant Comparison

Leek

Height N/A (Typically grown outdoors)
Spread N/A (Typically grown outdoors)
Growth Rate Moderate
Growth Pattern Upright, cylindrical growth with a bundle of leaf sheaths forming the stem and flat leaves emerging from the top.

Paw Paw

Height Difficult to predict indoors, typically 1-3 meters in a very large container. Outdoors: 3-8 meters.
Spread Difficult to predict indoors, typically 1-2 meters in a very large container. Outdoors: 2-5 meters.
Growth Rate Moderate
Growth Pattern Pawpaw trees typically grow as a single-stemmed tree or a multi-stemmed shrub with an upright, pyramidal shape. They can also spread through root suckers, forming colonies over time.

🌱 Propagation — Comparing Plant Growth

Leek

Methods: Seed, Division

Difficulty: Easy

Tips: Start seeds indoors 8-10 weeks before the last frost. Divide established plants in early spring or fall.

Paw Paw

Methods: Seed, Root Suckers, Grafting

Difficulty: Moderate

Tips: Seeds require cold stratification for 90-120 days before planting. Grafting is often used to propagate desirable cultivars.

✨ Benefits & Features — Comparing Plant Value

Leek

Leeks are unique for their cylindrical stem and lack of a bulb, differentiating them from onions and garlic. The blanched stem provides a milder, sweeter flavor compared to other alliums.

  • ✓ Provides fresh, flavorful ingredient for cooking.
  • ✓ Rich in vitamins and minerals.
  • ✓ Supports sustainable gardening practices.
  • ✓ Offers a visually appealing addition to the garden.
  • ✓ Can be used in a variety of culinary dishes.
  • ⚠️ Toxic to pets

Paw Paw

The pawpaw is the largest edible fruit native to North America and has a unique tropical flavor. It requires cross-pollination from different genetic sources to produce fruit, making it necessary to plant multiple trees.

  • ✓ Provides edible fruit.
  • ✓ Offers shade and visual interest in the landscape.
  • ✓ Supports native wildlife.
  • ✓ Unique and conversation-starting plant.
  • ✓ Can be used in various culinary applications.
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Leek

Repotting N/A (Typically grown outdoors)
Pruning Remove any yellowing or damaged leaves.
Fertilizing Balanced fertilizer (10-10-10) every 4-6 weeks during the growing season. Dilute to half strength.
Seasonal Care Spring: Plant seeds or transplants. Summer: Water regularly and fertilize. Fall: Harvest leeks. Winter: Protect from frost in colder climates.

Paw Paw

Repotting Repot young trees annually in spring. Mature trees may only need repotting every 2-3 years.
Pruning Prune in late winter or early spring to remove dead, damaged, or crossing branches. Train young trees to develop a strong central leader.
Fertilizing Balanced fertilizer (10-10-10) in early spring before new growth begins. Avoid over-fertilizing.
Seasonal Care Provide winter protection in colder climates. Water regularly during the growing season. Prune in late winter or early spring to remove dead or damaged branches.

🌞 Light Requirements

Leek

Full sun (at least 6-8 hours of direct sunlight daily)

Low light tolerant: ❌ No

Paw Paw

Full sun to partial shade outdoors. Requires at least 6 hours of direct sunlight for optimal fruit production.

Low light tolerant: ❌ No

💧 Watering Needs

Leek

Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to rot. Ensure good drainage. Signs of underwatering include wilting leaves, while overwatering can cause yellowing and mushy stems.

Paw Paw

Water deeply when planting and during dry periods, especially when young. Established trees are relatively drought-tolerant. Avoid overwatering, which can lead to root rot. Check soil moisture before watering.

🌡️ Temperature & Humidity

Leek

Temperature: 13-24°C

Humidity: 40-60%

Paw Paw

Temperature: 10-30°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Leek

Leek

Allium ampeloprasum var. porrum
Care: Expert Time: 15 minutes weekly Beginner: No

Gardeners looking to grow their own vegetables for culinary use.

✅ Choose This Plant If...

  • You enjoy cooking with fresh, homegrown vegetables.
  • You have a sunny garden space available.
  • You want to add a mild onion flavor to your dishes.
  • You are interested in companion planting with other vegetables.
  • You want to grow a traditional Welsh emblem.

❌ Skip This Plant If...

  • You lack a sunny outdoor space.
  • You have pets that might ingest the plant.
  • You are looking for a low-maintenance indoor plant.
📍 Ideal Location: Outdoor garden with full sun exposure.
🎨 Style: Cottage Garden, Rustic
🏠 Apartment Friendly: No
⚠️ All parts of the leek plant are toxic to dogs, cats, and horses. The toxic principle is n-propyl disulfide, which can cause Heinz body anemia. Symptoms include vomiting, diarrhea, weakness, and loss of appetite.
Paw Paw

Paw Paw

Asimina triloba
Care: Expert Time: 1-2 hours weekly (outdoors, during growing season) Beginner: No

Experienced gardeners in temperate climates who want to grow a unique fruit tree outdoors.

✅ Choose This Plant If...

  • You live in a temperate climate with suitable outdoor growing conditions.
  • You are an experienced gardener looking for a unique fruit tree to grow.
  • You are interested in native North American plants.
  • You have the space and resources to provide the necessary care and attention.
  • You enjoy the taste of pawpaw fruit and want to grow your own.

❌ Skip This Plant If...

  • You live in an apartment or have limited outdoor space.
  • You are a beginner gardener.
  • You have pets that may ingest the toxic seeds or bark.
  • You do not have the time or resources to provide the specific care required.
  • You are looking for an easy-to-grow indoor plant.
📍 Ideal Location: Outdoors in a sunny or partially shaded location with well-drained soil.
🎨 Style: Natural, Woodland, Edible Garden
🏠 Apartment Friendly: No
⚠️ The seeds and bark contain annonacin, which can cause neurological issues in dogs, cats, and horses if ingested in large quantities. Symptoms may include vomiting, diarrhea, and incoordination.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Neither - caution
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ Key Differences Between These Plants

🌿

Both plants have similar basic care requirements but differ in appearance and specific needs. Compare plants carefully to find the best fit for your space.

💡 Pro Tips For Comparing These Plants

Leek Care Tips

Leeks are primarily outdoor plants requiring full sun and well-drained soil. Indoor cultivation is challenging due to insufficient light and space. Providing adequate light and managing pests are crucial for successful growth. It is also toxic to pets.

  • Plant leeks in well-draining soil amended with compost.
  • Blanch the stems by hilling soil around them as they grow.
  • Water deeply and regularly, especially during dry periods.
  • Fertilize every 4-6 weeks with a balanced fertilizer.
  • Monitor for pests and diseases and take action promptly.
❄️ Winter: In colder climates, mulch around the base of the plants to protect them from freezing. Harvest before the ground freezes.
☀️ Summer: Ensure adequate watering during hot, dry periods. Monitor for pests and diseases. Provide shade during extreme heat.

Paw Paw Care Tips

Pawpaws are challenging to grow indoors due to their need for full sun, specific chilling requirements for fruit production, and large size. They require a very large container, careful watering, and protection from extreme temperatures. Indoor fruiting is unlikely.

  • Provide adequate sunlight for optimal fruit production.
  • Ensure well-draining soil to prevent root rot.
  • Protect young trees from strong winds.
  • Water deeply during dry periods.
  • Consider hand-pollinating the flowers to improve fruit set.
❄️ Winter: Pawpaw trees require a period of dormancy during the winter. Protect young trees from frost and extreme cold. Reduce watering during dormancy.
☀️ Summer: Water regularly during the growing season, especially during dry periods. Provide shade during the hottest part of the day to prevent leaf scorch. Monitor for pests and diseases.

⚠️ Common Problems & Solutions — Plant Care Comparison

Leek

Common Issues: Onion thrips, Leek moth, Rot
Solutions: Onion thrips: Insecticidal soap or neem oil. Leek moth: Row covers or Bacillus thuringiensis (Bt). Rot: Ensure good drainage and avoid overwatering.

Paw Paw

Common Issues: Root rot, leaf scorch, lack of fruit production, pest infestations (rare).
Solutions: Ensure well-draining soil and avoid overwatering. Provide adequate sunlight and humidity. Use appropriate pest control measures if needed. Provide proper chilling hours during winter for fruit production.

❓ Frequently Asked Questions — Comparing These Plants

Leek

What are the light requirements for Leek?

Leeks intended for flowering require ample sunlight to fuel their growth and blooming process. Ideally, provide at least 6-8 hours of direct sunlight each day. A south-facing window is often the best location indoors. Insufficient light can lead to weak, leggy growth and reduced flowering. If natural light is limited, supplement with grow lights. Rotate the plant regularly to ensure all sides receive adequate light exposure. Etoliation, or stretching towards the light, is a sign that the leek is not receiving enough light. Ensure the leek leaves are exposed to direct light, even if the bulb is partially shaded.

How do I care for Leek?

Flowering leeks thrive in full sun, requiring at least 6-8 hours of direct sunlight daily. Plant in well-draining soil enriched with organic matter. Water deeply when the top inch of soil feels dry, but avoid overwatering to prevent bulb rot. Fertilize monthly during the growing season with a balanced fertilizer, switching to a fertilizer higher in phosphorus to encourage blooming. Maintain a consistent watering schedule, especially during flowering. Deadhead spent flowers to encourage further blooming and prevent self-seeding. Provide support for tall flower stalks if needed to prevent them from bending or breaking. Monitor for pests such as aphids and thrips. Leeks prefer moderate humidity. Repot if grown in containers when the plant becomes root-bound. In colder climates, protect the base of the plant with mulch during winter.

How do I propagate Leek?

Leeks can be propagated through several methods. Division is the easiest: carefully separate offsets from the main bulb and replant them. Stem cuttings are less common but can be attempted by rooting sections of the flower stalk in water or moist soil. Keiki propagation, while not typical for leeks, might occur if bulbils develop on the flower head; these can be carefully removed and planted. When dividing, ensure each division has roots. For stem cuttings, use rooting hormone to encourage root development. Provide consistent moisture and warmth for successful propagation. New plants will require similar care to mature plants. Remember to choose healthy, disease-free plants for propagation.

Paw Paw

What are the light requirements for Paw Paw?

Paw Paw trees require bright, indirect light to thrive indoors. Insufficient light can lead to leggy growth and reduced fruit production (if fruiting). A location near an east- or west-facing window is ideal. Avoid direct sunlight, especially during the hottest part of the day, as it can scorch the leaves. If natural light is limited, supplement with a grow light. Rotate the plant regularly to ensure even light exposure on all sides. Observe the plant’s growth habit to determine if it’s receiving adequate light. If the stems are stretching towards the light source, it indicates that more light is needed.

How do I care for Paw Paw?

To successfully grow Paw Paw indoors, provide bright, indirect light, ideally near an east- or west-facing window. Use a well-draining potting mix rich in organic matter. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain away. Maintain moderate humidity levels, especially during winter months when indoor air tends to be drier. Fertilize sparingly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Repot young plants annually in spring, increasing the pot size gradually. Prune to maintain shape and remove any dead or damaged branches. Protect from drafts and sudden temperature changes. Monitor regularly for pests and diseases. Provide stable growing conditions, avoiding overwatering or underwatering.

How do I propagate Paw Paw?

Paw Paw can be propagated by stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from new growth in spring or early summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it moist. Cover with a plastic bag to maintain humidity. For air layering, make a small incision on a stem and wrap it with moist sphagnum moss. Cover the moss with plastic wrap and secure it with tape. Once roots develop, cut the stem below the roots and plant it in a pot. Both methods require patience and consistent moisture.

Last updated: May 11, 2026 — Plant care data reviewed and verified by our editorial team.