Short answer: Yes—uprooting any plant is hinsa (violence) in Jain Dharma. The vow for householders is to minimize, not to make it zero.

How Jain principles see this

• Any injury to vanaspati-jiva (plant life) is dravya-hinsa. Uprooting destroys the whole plant and also disturbs many tiny beings in the moist soil; so it is a higher degree of hinsa than plucking fruits or gathering fallen seeds.
• Peanuts are seeds (pratyeka-vanaspati: one soul per seed), not a “root-vegetable” like potato or onion (which are classed with higher, sadharana-vanaspati harm). But peanuts grow underground, and normal harvesting pulls out the entire plant—so the act of harvesting involves extra hinsa to the plant and soil beings.

What do Jains do in practice?

• Monks/nuns: observe the highest restraint and avoid anything that entails needless harm; they would not engage in harvesting.
• Lay followers (shravaks): follow anuvrats (limited vows). Many avoid classic kanda-moola (potato, onion, garlic, etc.). About peanuts, practices differ by sangh and guru-vachan:

- Some families avoid all underground produce including groundnuts, to stay safest. - Many allow peanuts because the edible part is a seed; they still try to minimize harm by using old, dry, cleaned, roasted peanuts (not fresh/green), and especially avoid such items during periods of extra restraint like Paryushan/Paushadh.

• A simple hierarchy to reduce hinsa: fruits/seeds gathered without killing the plant are best; next are above-ground vegetables; root-vegetables are avoided. Peanuts, though a seed, involve uprooting at harvest—so they sit between “best” and “to-be-avoided,” and are treated cautiously by conscientious Jains.

If you wish to stay on the safest side: avoid items that require uprooting; choose legumes and grains harvested without destroying the plant; and follow the guidance of your own acharya/guru.

For related, easy explanations on Jain food restraint and why root-vegetables are avoided, see:

• Why Jains avoid root vegetables
• Groundnuts vs onion/garlic (community guidance)
• Layperson vows and minimizing unavoidable harm