Growing Plants

Req 3abc — Nutritional Value of Garden Crops

3.
Give the nutritional value of the following:

This requirement covers three groups of crops that gardeners commonly grow and eat:

3a.
Three root or tuber crops
3b.
Three vegetables that bear above the ground
3c.
Three fruits.

When gardeners talk about a crop being “worth growing,” they often mean more than taste or appearance. They also mean nutrition. This requirement is asking you to connect gardening to health by understanding what different crops contribute to the human diet.

What “Nutritional Value” Really Means

Nutritional value includes the vitamins, minerals, fiber, water, and energy a food provides. It can also include how that crop helps your body function — for example, supporting vision, digestion, immune health, or steady energy.

You do not need to memorize a giant chemistry chart. What you do need is a clear way to explain why certain crops are useful foods and what each one contributes.

Root and Tuber Crops

Root and tuber crops grow underground and store energy for the plant. Because of that, many are rich in carbohydrates, but they can also provide fiber, vitamins, and important minerals.

Potatoes

Potatoes are often treated like junk food because of fries and chips, but the plain potato itself is a useful food. It provides carbohydrates for energy, potassium for muscle and nerve function, vitamin C, and some fiber, especially when eaten with the skin.

Potatoes

Sweet Potatoes

Sweet potatoes are especially known for beta carotene, which the body converts into vitamin A. Vitamin A supports vision, immune function, and skin health. Sweet potatoes also provide fiber and carbohydrates.

Sweet Potatoes

Taro

Taro is a starchy tuber grown widely in tropical and subtropical regions. It provides carbohydrates for energy and also contributes fiber and minerals. Taro must be cooked properly before eating because raw taro can irritate the mouth and throat.

Taro

Vegetables That Bear Above the Ground

These crops develop their edible parts above the soil line. Nutritionally, they often contribute water, fiber, vitamins, and protective plant compounds called phytonutrients.

Lettuce

Lettuce is low in calories and high in water, which makes it refreshing and useful for hydration. Darker leafy lettuces also provide vitamin K, folate, and some vitamin A. On its own, lettuce is not a high-energy food, but it adds volume, freshness, and nutrients to meals.

Lettuce

Tomatoes

Tomatoes provide vitamin C, potassium, and the antioxidant lycopene, which gives red tomatoes their color. Lycopene has been studied for its role in protecting cells from damage. Tomatoes are also versatile because they can be eaten raw or cooked.

Tomatoes

Cucumbers

Cucumbers are mostly water, which makes them hydrating and crisp. They also provide small amounts of vitamin K and other nutrients. Their nutritional value is not about being calorie-dense. It is about hydration, freshness, and variety in a healthy diet.

Cucumbers

Fruits

Fruits are often sweet because they contain natural sugars, but that does not make them unhealthy. Whole fruits also provide fiber, water, vitamins, and protective plant compounds.

Apples

Apples provide fiber, especially in the skin, along with vitamin C and plenty of water. Their fiber helps digestion and can help you feel full longer than a sugary snack with no fiber.

Apples

Oranges

Oranges are famous for vitamin C, which supports immune function and helps the body repair tissue. They also provide water, fiber, and folate.

Oranges

Grapes

Grapes provide water, natural sugars for quick energy, and antioxidants, including compounds that help protect cells. Like many fruits, their value is strongest when eaten as whole fruit rather than heavily sweetened products.

Grapes

Comparing the Three Crop Groups

Crop GroupMain StrengthsCommon Nutrients
Root/tuber cropsEnergy storage foodsCarbohydrates, fiber, potassium, vitamin A or C depending on crop
Above-ground vegetablesLow-calorie nutrient densityWater, fiber, vitamin K, vitamin C, folate, antioxidants
FruitsSweetness plus hydration and vitaminsVitamin C, fiber, water, natural sugars, antioxidants

This table is helpful when you explain nutritional value to your counselor. You are showing that different crops do different jobs in a healthy diet. No single crop does everything.

Why This Matters to Gardeners

A gardener who understands nutrition makes better planting choices. If your family wants more salad greens, vitamin-rich roots, or fresh fruit snacks, you can choose crops that support those goals. A garden can become part of your meal planning, not just your landscaping.

This requirement also connects back to Req 2a. When you grow vegetables yourself, the nutritional discussion becomes personal. You are not just talking about potatoes or tomatoes in theory. You may be eating something you raised.

USDA MyPlate — Vegetables A simple guide to vegetable groups, nutrients, and why variety matters in a healthy eating pattern. USDA MyPlate — Fruits An easy-to-understand overview of the nutritional benefits of fruits and how they fit into balanced meals.

You have now connected gardening to nutrition. Next, move into a more scientific gardening skill: testing seeds to see how well they germinate and thinking about why some fail.