Comprehensive Plant Database

Search and filter by soil pH, sunlight, functional traits, ecology, and safety, covering every plant type.

⚙️ Filters
🧪 Soil pH Range
0.0to14.0
0 (Acidic)7 (Neutral)14 (Alkaline)
➕ More Filters (Botany, Ecology, Use)
🧬 Traits
🍽️ Edibility
Showing all 155 plants
155 plants available
Acorn Squash, Des Moines Squash, Pepper Squash
herb_non_graminoidLC

Acorn Squash, Des Moines Squash, Pepper Squash

Cucurbita pepo

Cucurbitaceae

☀️SunFull Sun
💧WaterProvide 1 inch of water weekly at the soil base. Avoid overhead sprinkler irrigation to reduce powdery mildew susceptibility.
🗺️Zone3a-11b
Easy✨ Attracts Pollinators
📏 Height: 1.5-3 feet (45-90 cm)
Ideal pH6 – 6.8
Ajuga
herb_non_graminoidLC

Carpet Bugleweed, Bugle, Blue Bugle, Carpenter's Herb

Ajuga reptans

Lamiaceae

☀️SunPartial Sun, Partial Shade, Full Shade
💧WaterWater moderately until established; tolerates brief dry spells once rooted but performs best with consistent moisture in well-draining soil.
🗺️Zone3a - 9b
Easy✨ deer_resistant
📏 Height: 3-6 inches (up to 9 inches in bloom)
Ideal pH4.5 – 6.8
Giant Allium, Ornamental Onion, Giant Onion
herb_non_graminoidLC

Giant Allium, Ornamental Onion, Giant Onion

Allium giganteum

Amaryllidaceae

☀️SunFull Sun
💧WaterWater moderately during spring growth; requires dry soil conditions during summer dormancy to prevent bulb rot.
🗺️Zone4a-9b
Easy⚠️ Mildly Toxic✨ fragrant_foliage
📏 Height: 3-5 feet (90-150 cm)
Ideal pH6 – 7.5
Aloe Vera, True Aloe, Medicinal Aloe, Barbados Aloe
succulent_leafLC

Aloe Vera, True Aloe, Medicinal Aloe, Barbados Aloe

Aloe vera

Asphodelaceae

☀️SunFull Sun, Partial Sun
💧WaterEmploy the 'soak and dry' method: saturate root zone completely, then allow medium to become 100% dry before re-watering. Reduce watering by 70% in winter.
🗺️Zone9a-11b
Easy⚠️ Mildly Toxic✨ air_purifying
📏 Height: 1-2 feet (30-60 cm) (foliage); up to 3 feet (90 cm) in flower
Ideal pH6.5 – 8
Blood Amaranth, Purple Amaranth, Red Amaranth, Grain Amaranth
herb_non_graminoidLC

Blood Amaranth, Purple Amaranth, Red Amaranth, Grain Amaranth

Amaranthus cruentus

Amaranthaceae

☀️SunFull Sun
💧WaterLow to medium. Once established, requires little supplemental irrigation except during severe hot dry spells.
🗺️Zone2a-11b
Easy✨ deer_resistant
📏 Height: 4-8 feet (120-240 cm)
Ideal pH6 – 7.5
Arugula, Garden Rocket, Roquette, Eruca
herb_non_graminoidLC

Arugula, Garden Rocket, Roquette, Eruca

Eruca vesicaria

Brassicaceae

☀️SunFull Sun, Partial Sun, Partial Shade
💧WaterMaintain even moisture with 1 inch of water weekly. Inconsistent moisture induces premature bolting and leaf bitterness.
🗺️Zone3a - 11b
Easy✨ fragrant_flower
📏 Height: 1-2 feet (30-60 cm)
Ideal pH6 – 7.2
Garden Asparagus, Edible Asparagus, Sparrow Grass
herb_non_graminoidLC

Garden Asparagus, Edible Asparagus, Sparrow Grass

Asparagus officinalis

Asparagaceae

☀️SunFull Sun, Partial Sun
💧WaterDeep watering during dry spells, especially during the fern-recharging summer phase; mature crowns tolerate drought.
🗺️Zone3a-9b
Moderate⚠️ Mildly Toxic✨ deer_resistant
📏 Height: 4-6 feet (120-180 cm)
Ideal pH6.5 – 7.8
Chinese Astilbe, False Spirea, False Goat's Beard
herb_non_graminoidLC

Chinese Astilbe, False Spirea, False Goat's Beard

Astilbe chinensis

Saxifragaceae

☀️SunPartial Sun, Partial Shade, Full Shade
💧WaterHigh. Requires consistent moisture. Foliage scorches quickly if allowed to dry out in full sun.
🗺️Zone4a-9a
Easy✨ deer_resistant
📏 Height: 1.5-3 feet (45-90 cm)
Ideal pH5.5 – 6.8
Azalea
shrubLC

Indica Azalea, Southern Indica Azalea, Satsuki Azalea

Rhododendron indicum

Ericaceae

☀️SunPartial Sun, Partial Shade
💧WaterShallow root system requires consistent moisture; water deeply 1-2 times weekly during dry spells. Mulch heavily with pine bark or pine needles to retain moisture and maintain soil acidity.
🗺️Zone6a - 9b
Moderate⚠️ Highly Toxic✨ Attracts Pollinators
📏 Height: 3-6 feet
Ideal pH4.5 – 6
German Bearded Iris, Flag Iris, Common German Iris
herb_non_graminoidNE

German Bearded Iris, Flag Iris, Common German Iris

Iris germanica

Iridaceae

☀️SunFull Sun
💧WaterLow. Drought tolerant once established. Water primarily during active spring growth and late-summer root establishment.
🗺️Zone3a-9b
Easy⚠️ Mildly Toxic✨ fragrant_flower
📏 Height: 2-3 feet (60-90 cm)
Ideal pH6.5 – 7.5
Beet, Beetroot, Table Beet, Garden Beet
herb_non_graminoidLC

Beet, Beetroot, Table Beet, Garden Beet

Beta vulgaris

Amaranthaceae

☀️SunFull Sun, Partial Sun
💧WaterUniform watering (1 to 1.5 inches weekly); fluctuating soil moisture causes woody, cracked, or irregularly zoned roots.
🗺️Zone2a-11b
Easy✨ Attracts Pollinators
📏 Height: 1-1.5 feet (30-45 cm)
Ideal pH6.5 – 7.5
Bell Pepper, Sweet Pepper, Capsicum
herb_non_graminoidLC

Bell Pepper, Sweet Pepper, Capsicum

Capsicum annuum

Solanaceae

☀️SunFull Sun
💧WaterProvide consistent moisture, approximately 1-2 inches per week. Mulch to stabilize soil moisture and reduce blossom end rot.
🗺️Zone9-11 (grown as annual in zones 2-8)
Easy⚠️ Mildly Toxic✨ fragrant_foliage
📏 Height: 30-90 cm (12-36 inches)
Ideal pH6 – 6.8

Beans: Soil pH, Planting Depth and Spacing (Green, Bush, Fava)

The three bean records in this database, green bean, bush bean and fava (broad bean), all sit in the same narrow soil window: pH 6.0 to 7.0, well-drained, and neither waterlogged nor droughted through pod fill. That window is not a preference, it is a biological constraint. Rhizobium nodules (the reason a bean feeds itself) stop fixing atmospheric nitrogen below about pH 6.0, and fava shows aluminium and manganese toxicity on acid ground before the common beans do. Lime to 6.0-6.5 if a test comes back under 6.0, then re-test: the correction takes months, not weeks.

BeanSow depthSpacingSoil temperature
Green bean1–1.5 in (2.5–4 cm)3–4 in in-row, 18–24 in apart60°F (16°C) or warmer
Bush bean1–1.5 in (2.5–4 cm)3–4 in in-row, 18–24 in apart60°F (16°C) or warmer
Fava bean1–2 in (2.5–5 cm)4–6 in in-row, 24 in apart40–50°F (5–10°C)

Depth. Sow bean seed at about three times its own thickness and no deeper: 1 to 1.5 inches for green and bush bean, 1 to 2 inches for the larger fava seed. Sowing shallow is the safer error. Common bean will not germinate in soil still below 60°F (16°C) (seed sits and rots instead of swelling) while fava is the opposite and goes in four to six weeks before the last frost, which is why it also works as an autumn sowing. Neither wants a presoak: hydrate the bed, not the seed.

Spacing. Bush types are determinate and stop growing on their own, so 3 to 4 inches within the row and 18 to 24 inches between rows gives a canopy that closes without crowding; thinned stands dry out and crack their pods. Fava is taller and stiffer, so it takes 4 to 6 inches in the row with 24 inches between rows, and it benefits from a stake on exposed ground. Pole types are a different question: they need the trellis before the seed goes in.

After sowing. About an inch of water a week, held evenly through flowering and pod set: a dry week at first bloom drops the flower set, and a waterlogged week at harvest splits the pods. Inoculate seed if the bed has not grown a legume in the last four years, keep fresh manure out of the hole (it delays nodulation) and feed phosphorus and potash from a soil test rather than by habit. Full sun for all three. For the pH side of that, start from the soil pH by crop reference table and work out the rate with the lime requirement calculator.