12 Vegetables You Should Never Grow in Raised Garden Beds (And Why!)

lift garden bed are a gardener ’s delight , offering improved drainage , soil quality , and easier approach . However , not all veggie are suited for these throttle infinite .

Some plants require elbow room to straggle , need specific conditions , or are too demanding for the limited resources of raised beds . Knowing which vegetables to avoid plant in raise beds can save you clip , effort , and disappointment .

This guide explore 12 such vegetable , explaining why they ’re better entrust out of resurrect garden scenario and providing insights into alternatives or solution for successful gardening .

1. Corn

Corn is a staple crop known for its towering summit and need for outer space . In a raised garden bed , maize ’s height can overshadow and occlude sunshine from smaller plants nearby . Additionally , maize take air current for pollination , which is take exception in confined space .

Without right pollination , yields can be seriously move . raise beds can also limit the encompassing root organisation of Indian corn , hindering growth . If you love edible corn , deliberate planting it in rows in a traditional garden blank . This allows for ripe melodic line circulation and sunlight access , assure a more successful harvest .

2. Pumpkins

autumn pumpkin are noted for their sprawling vine that can quickly take over a garden blank space . In a raised bed , these vines can deluge other plant , reducing their entree to resource . Pumpkins also require a lot of nutrient , which can deplete the soil in a confined bed .

Their size of it and increment substance abuse make them well suited for a spacious , traditional garden . If you ’re keen on growing pumpkins , opt for a consecrated in - ground spot where they can sprawl freely . This not only maximizes their maturation but also prevents them from overshadowing other plants .

3. Watermelon

watermelon , like pumpkins , are notorious for their all-inclusive spread vine . They require a lot of room to grow and fly high , making them unsuitable for raised bed . The confined space can lead to overcrowding , limiting the growth of both the watermelon and other plant life .

watermelon also require a significant amount of piddle and nutrients , which can quickly exhaust a raised bed ’s resource . raise them in a spacious , traditional garden setting allows their vines to spread of course and access ample sun . weigh a raised mound in an open orbit for safe upshot .

4. Okra

Okra is a grandiloquent - growing plant that can reach heights of several feet . In raised beds , its meridian can immobilize sun from get to shorter plant , head to stunted emergence . Okra also requires warm temperatures and consistent forethought , which can be gainsay in the special blank of a raised bed .

The plant ’s extensive root scheme needs depth , often not useable in shallower beds . For successful lady’s-finger polish , consider institute in a traditional garden or using a deeper recruit bed . This see adequate sun , distance , and nutrient approach for healthy growth .

5. Asparagus

Asparagus is a recurrent vegetable that require several years to mature and produce a true harvest time . In a raised garden bed , edible asparagus can monopolize space for long time , making it Laputan for those prefer annual revolution . Its extensive base system requires depth , often lacking in raised beds .

Additionally , asparagus needs well - drained grunge and consistent care . If you wish to grow asparagus , devote a specific in - earth area where it can thrive foresighted - term . This plan of attack allows you to savour edible asparagus without sacrificing valuable outer space for other one-year crops .

6. Rhubarb

Rhubarb is another perennial that requires a lot of room to grow . Its large leafage and marvelous stalking can overshadow other plant in a raised bed . Furthermore , rhubarb ’s preference for cool climates and well - drained dirt can be hard to maintain in confine spaces .

call down bed often lack the depth and space need for rhubarb ’s extensive antecedent system . To mature pieplant successfully , it ’s well implant in a consecrate in - ground spot where it can spread and make itself over meter . This guarantee a healthy , productive rhubarb plant bandage without compromising other plants .

7. Artichokes

artichoke are known for their large , bushy ontogenesis habit , making them undesirable for limited infinite like raised bed . They require a lot of way to spread and can overshadow smaller plants nearby . Artichokes also need deep , well - drain land and consistent lacrimation , which can be challenge in a recruit layer .

Their recurrent nature have in mind they occupy infinite for year . develop artichokes in a traditional garden setting ensures they have the space and conditions needed to thrive . Consider give a specific area where they wo n’t contend with other crops .

8. Potatoes

white potato are a origin harvest that requires abstruse , unaffixed soil to develop the right way . evoke bed often lack the necessary depth for optimum Irish potato growth . to boot , white potato vine can eat up soil nutrients apace , necessitating regular refilling .

Their growth riding habit and nutrient needs make them better accommodate for trenches or grow bags , where they have ample outer space and soil . If you require to grow murphy in a raised circumstance , ensure the bottom is deep and the territory replenish regularly .

Otherwise , deal more traditional methods to accomplish a liberal harvest .

Corn

© SDSU Extension – South Dakota State University

9. Sweet Potatoes

Sweet Solanum tuberosum are known for their aggressive , sprawling vines that can speedily overhaul a garden distance . In a raised seam , these vines can crowd out other plant life and deplete resources . Sweet potatoes also require strong , well - run out soil to thrive , which can be challenging to maintain in confined spaces .

For best answer , grow sweet potatoes in a traditional garden scene or bombastic containers where they can spread freely . This assure they have the space and conditions need to give rise a healthy and abundant craw without interfering with other plant .

10. Cabbage

Cabbage can be a challenging harvest to develop in raised beds due to its quad requisite and susceptibleness to pests . Cabbage worm , in particular , are a rough-cut outlet that can damage the plant significantly . The prominent heads also take up more way than foresee , crowding out other plants in limited spaces .

Raised beds may not provide the necessary space for cabbages to grow without contention . study planting cabbage in a traditional garden area with fair to middling space to handle pest and allow for full growing . This approach maximize success and yield .

11. Brussels Sprouts

Brussels bourgeon have a recollective growing time of year and reach pinnacle that can overshadow other flora in a raised layer . Their tall , space - consume substance abuse requires ample elbow room for optimal development .

Brussels sprout are also prone to pests and diseases , which can propagate quickly in confined space . For a successful harvest time , plant Brussels sprouts in a traditional garden mise en scene with plenty of space and airflow .

This allows for good management of their specific needs and reduces the endangerment of gadfly infestations and disease spread .

Pumpkins

© Reading Eagle

12. Celery

Apium graveolens dulce is a moisture - love plant that postulate consistent watering and specific condition to expand . In raised beds , maintaining the necessary wet storey can be difficult , leading to uneven growth .

Celery ’s shallow root also involve well - drained stain , which can be challenging in confine space . The plant ’s demands for place and care make it more suitable for traditional gardens where condition can be controlled more easily .

For successful celery growth , control a consecrate field with rich water supply access and proper spacing to prevent crowding and boost intelligent development .

Watermelon