An Overview of Peanut Plants
Peanuts, also known as groundnuts or goobers, are a popular type of legume grown around the world. Unlike most other nuts that grow on trees, the peanut plant produces its seed pods underground. Their sweet nutty flavor makes peanuts a beloved snack and ingredient in many cuisines. This article provides an introduction to identifying peanut plants and how peanuts are grown.
Identifying Peanut Plants
Peanut plants belong to the Fabaceae or legume family. They have the botanical name Arachis hypogaea and are considered an annual herbaceous plant. Once planted, peanut plants take about 120-150 days to reach full maturity. Here are some key traits that distinguish the peanut plant:
- Leaves are oppositely arranged with four leaflets
- Yellow flowers bloom above ground but then stalks elongate into the soil
- Seed pods containing 1-4 peanuts form underground next to the root nodules
- Plants grow close to the ground and reach up to 18 inches tall
- Taproots descend over 1 foot deep into the earth
Stages of Peanut Plant Growth
Peanut seeds are sown directly into warm soil that is at least 65F after the last spring frost. It's critical to choose peanut varieties that match local growing conditions. After planting, peanut plant development follows this sequence of growth stages:
- Germination: Cotyledons push through the soil within 5-10 days. Taproots also anchor deep underground.
- Seedling stage: True leaves form and vegetative stems branch out across the ground for a month after sprouting.
- Flowering: Yellow flower buds bloom above ground around 40 days into growth but soon shift downward as the ovary elongates into a narrow stalk called a peg.
- Pegging: Fertilized pegs burrow 2-3 inches underground until they reach a leaf node. The peg tip then enlarges into a pod-bearing structure.
- Pod development: About two weeks after pegging, seed pods called peanuts visibly swell underground. Pods fill out with maturing peanuts over the next month.
- Maturity: After 120+ days total growing time, peanut plant leaves start yellowing. Digging and harvesting occurs shortly after.
Growing Conditions for Peanuts
Since they originated in South America, peanut plants thrive in hot, humid environments with specific soil needs:
- Well-drained loamy soil with a pH between 5.5-6.5
- Loose, sandy soil for pods to push into
- Relatively dry soil when flowering and pegging
- Warm soil plus air temperatures around 85F for much of the season
- About 40-50 inches of rain or equivalent irrigation spaced evenly from germination through harvest
- At least 5 months of steady frost-free weather to reach maturity
How to Draw a Peanut Plant
Capturing the unique growth habit of the peanut plant through art is a great way to understand its unusual underground fruiting structure. Follow this step-by-step drawing guide to create a realistic peanut plant illustration.
Gather Drawing Materials
Having the right art supplies makes crafting a botanically accurate peanut drawing much easier. Recommended materials include:
- White paper, Bristol board or mixed media sketchpad
- Graphite drawing pencils in a range of softnesses like 8B, 4B, HB
- Sharpener
- Eraser such as kneaded rubber or vinyl eraser
- Pencil crayons, fine liner pens or markers for adding color (optional)
Sketch the Basic Plant Shape
First lightly outline the major plant structures with an HB pencil. Capture peanut plants' sprawling horizontal shape sweeping close along the ground with branching runners. Add a basic leaf shape opposite one another along the stems and a central taproot plunging from the center of the plant.
Draw the Foliage
Go over the leaves with darker, thicker outlines using a 4B-8B pencil. Add vein details to each little leaflet. Shade the leaves very lightly and gradually to suggest depth and a bit of texture. Soften sharp edges with a kneaded eraser.
Include the Flowers and Pegs
Lightly sketch flowering spikes arising from leaf nodes that bend into downward pointing pegs extending to the root area. Develop the base of descending pegs into small swelling pod shapes. Note how peanut seed pods bulge around the taproot underground.
Deepen Shadows and Details
Use a sharp 8B pencil to make lines firmer and indicate areas of light and shadow. Apply more pressure when shading the buried pods and root nodules to make them appear subsurface compared to above ground foliage catching more light. Blend shading for subtle gradations between values.
Refine and Complete Drawing
Erase any distracting construction lines to clean up the finished piece. Neaten stray marks and subtly brighten highlighted areas on leaves by dabbing with a kneaded eraser. Finally, use pens or colored pencils to accentuate elements like yellow flowers, reddish pegs, tan pods and green stems.
Peanut Plant Crafts
Drawing peanut plants helps illuminate their unusual growing habits. There are also many other edible and ornamental DIY projects that celebrate peanut plants artistically by recreating their pods and seeds in charming decorations and toys.
Felt Peanut Dolls
Hand sew simple peanut shaped dolls out of brown felt fabric. Add details like facial features with black embroidery floss. Fuzzy green stems and leaves make the peanut characters look rooted in the ground. Encourage kids to design stories and settings for their felt peanut puppets' own underground adventures!
Peanut Plant Paper Craft
Printable paper templates for the different parts of the peanut plant help with building an informative and attractive 3D model. Cut and fold paper leaves, taproots, flowers, pegs and pods. Glue or tape elements onto a long strip of blue paper to represent the soil and attach a toothpick to support the standing model.
Roasted Peanut Wreath
Creating wreaths out of food is a fun celebration of harvest season when digging up mature peanut plants. Shape metal wreath frames with wire to hold roasted in-shell peanuts and glue or tie them in place. Intersperse nuts with curled peanut vine tendrils, dried corn husks and mini gourds for seasonal decoration.
Peanut Plant Biology Trivia
The peanut plant has quite a few quirky traits that make it unique in the plant kingdom. Here are fascinating physiological facts about peanut fruit formation underground:
- Peanut seeds technically mature into a legume fruit called a legume pod rather than an actual hard-shelled nut
- The number of seeds that develop inside pods depends on peanut variety - either 2, 3 or 4
- About 80% or more of peanut pods initiate development underground in the geocarpic fruiting process
- If peg elongation happens above ground instead, exposed pods shrivel from lack of moisture and nutrients
- Each reproductive node on a peanut plant can set up to 15-20 pods, making them prolific producers
- High temperatures above 95F can disrupt the sensitive flowering and fruiting stages
- Peanut plants display an unusual type of photo-periodic flowering behavior influenced by both day length and temperature triggers
With their quirky growing habits and practical uses, the humble peanut plant is both biologically fascinating as well as culturally and culinarily significant worldwide.
FAQs
What supplies do I need to draw a peanut plant?
Recommended art supplies include drawing pencils in a range of softnesses, white paper or sketchpad, a sharpener, eraser, and optional colored pencils, pens or markers for adding color.
What are the key stages of peanut plant growth?
Peanut plants go through germination, seedling, flowering, pegging, pod development, and finally reach maturity after 120+ days. Paying attention to phenology helps illustrate the plant accurately.
How do I draw the underground seed pods?
Lightly sketch descending pegs from flower spikes that swell into pod shapes near the taproot. Shade these subsurface to differentiate from above ground stems and leaves.
What are some peanut plant inspired craft ideas?
Make felt peanut dolls, paper craft plant models, or wreaths decorated with roasted peanut pods and vines to celebrate peanut harvest season creatively.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.
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