Last edited on 8 Oct 2019. View history

Dark Opal Basil

A variety of basil

3: plantings
0: harvests
0: seed packets

Growstuff is a free, community-run site for people who grow food. Keep track of what you plant and harvest, find seeds to swap, and see what is growing near you. Join to record your own dark opal basils.

Dark opal basil facts

Lifespan

Annual living and reproducing in a single year or less

16 weeks median lifespan

Spread

15cm

Growing dark opal basils

Sow seeds indoors 6 weeks before planting out
Harden off the seedlings 1 week before planting out
Water regularly at planting out every week
Pinch out the growing tips 3 weeks after planting out every 2 weeks
Pick leaves regularly at first harvest every week
Pinch off flower buds 8 weeks after planting out every 2 weeks
Pull out finished plants 12 weeks after first harvest

How members grow dark opal basils

Sunniness

Planted from

Plant dark opal basils with

grape tomato

Photos

Dark opal basil plantings

IMG_20190209_125125

by shiny 2019-02-09 0

More photos

Video

Where dark opal basils grow

Only plantings by members who have set their locations are shown.

What people are saying about dark opal basils

Nobody has posted about dark opal basils yet.

Who's planted dark opal basils

shiny back yard shaded garden · Wellington, NZ
corvi seed trays · salt spring island
nodosa Budding food garden · Mayenne, France

Dark opal basil harvests

Nobody has harvested this crop yet.

Find dark opal basil seeds

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Ecological requirements

Data from the FAO EcoCrop database for Ocimum basilicum L.

Family / Taxonomy	Magnoliopsida Asteridae Lamiales Labiatae
Optimal temperature	18 - 27 °C
Absolute temperature	7 - 36 °C
Optimal rainfall	1000 - 1600 mm/year
Absolute rainfall	600 - 4300 mm/year
Optimal soil pH	6.0 - 7.0
Absolute soil pH	4.3 - 8.2
Crop cycle	80 - 270 days
Life form	herb
Life span	annual
Habit	erect
Optimal soil depth	shallow (20-50 cm)
Optimal soil texture	medium
Optimal soil fertility	high
Optimal soil drainage	well (dry spells)
Optimal soil salinity	low (<4 dS/m)
Photoperiod	short day (<12 hours), neutral day (12-14 hours), long day (>14 hours)
Optimal light	very bright

Licensed under CC-BY-4.0 .

Food and Agriculture Organization of the United Nations (2025) ECOCROP, the crop ecological requirements database. Version 1. https://data.apps.fao.org/catalog/dataset/ecocrop. Accessed through the CGIAR Climate Action Data Hub, https://cgiar-climate-data-hub.github.io/catalog/ecocrop_1/.

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