---
title: Dwarf mondo grass 'Nana' in a terrarium | Glass Jar Garden
description: Dwarf mondo grass 'Nana' (Ophiopogon japonicus 'Nana'): Dark grassy tufts that give a jar its sense of scale. Slow. Needs light 2,500 to 15,000 lux, humidity...
url: https://glassjar.garden/guide/plants/ophiopogon-japonicus-nana/
---

Plants

# Dwarf mondo grass 'Nana'
Ophiopogon japonicus 'Nana'

Beginner · Fine in a closed jar

Dark grassy tufts that give a jar its sense of scale. Slow.

## What the simulation uses

- Light: 2,500 to 15,000 lux (The brightness it grows well in.)

- Humidity: 40 to 90 % RH (Air moisture it is happy in; below the lower end it dries out.)

- Temperature: 5 to 27 °C (Comfortable range; outside it growth slows.)

- Dies at: below -20 or above 35 °C (Days beyond these temperatures kill it.)

- Soil pH: 5.5 to 7 pH (Soil acidity it prefers.)

- Grows up: 0.2 cm/month (How fast it gains height in good conditions.)

- Spreads: 0.2 cm/month (How fast its edge creeps outwards.)

- Copes with wet: fair (How well it stands soggy soil; poor means rot comes quickly.)

- Copes with still air: good (Sealed jars have still air; poor means grey mould finds it.)

- Copes with shade: good (How well it holds on in dim light.)

- Copes with drying: good (How well it survives the jar drying out.)

- Water use: 0.07 ml/cm²/day (Water drawn up from its roots per cm² of leaves in room air; a sealed jar cuts this to a fraction and returns it down the glass.)

- Leaf drop: 2 %/month (Share of its leaves it sheds each month as litter for the cleanup crew.)

- Soft leaves: no (Soft new growth that hungry isopods will nibble.)

- Full size: 10 cm tall, 25 cm wide (Its size when grown, before the lid stops it.)

## Care

- Day length: 10 to 14 h

- Substrate: Moist

## What kills it

- full submersion
- slugs
- stagnant waterlogged roots

## Description
Shops sometimes sell it for aquariums, but it is not a water plant and fades if kept underwater. In a humid closed jar it does fine. Just keep the base of the tuft above any standing water.

Also called dwarf lilyturf, mini mondo grass.

Estimated, where sources were thin: submersion intolerance is hobby knowledge not on fetched pages; temp_c; growth rates; humidity_rh_pct.

## Sources

- [plants.ces.ncsu.edu/plants/ophiopogon-japonicus-nana](https://plants.ces.ncsu.edu/plants/ophiopogon-japonicus-nana/)
- [plants.ces.ncsu.edu/plants/ophiopogon-japonicus](https://plants.ces.ncsu.edu/plants/ophiopogon-japonicus/)

[Grow it in a jar](https://glassjar.garden/?guide=plants/ophiopogon-japonicus-nana)

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