Preposition: of

• plant: ZONE -- An area defined by its range of temperatures and used to describe the hardiness of plants.

Converse of object

• have: Using questionnaire, the low illness group had more hardiness.

• combine: The latest version seems to have combined the hardiness of its bulkier brother combined with a design overhaul by an Italian car manufacturer.

• develop: Build up their confidence and self esteem again, this reduces stress and develops a stress hardiness for future use.

• increase: This mix includes a dwarf ryegrass to increase the hardiness of the sward.

Adjective modifier

• borderline: I also cover the top-growth of susceptible plants and those of borderline hardiness with a double-layer of garden fleece.

• partial: Aspect: Full sun to partial shade Hardiness: Fully hardy, may be subject to frost damage.

• cold: The loss of cold hardiness occurs under ice cover but varies among turfgrass species.

• full: Aspect: Full sun Hardiness: Fully hardy to half hardy.

• extreme: The blue gourami, on the other hand, continues to have the extreme hardiness that made it so popular with earlier aquarists.

Modifies a noun

• zone: Some of these areas I believe are USDA hardiness zone 8, which I think is what much of the UK equates to?

• rating: A valuable feature of this award is the hardiness rating attached to each award.

• map: Of course it is always a relief to find a work without the ubiquitous hardiness maps and gardening advice.

Noun used with modifier

• shade: Aspect: Full sun to partial shade Hardiness: Fully hardy, may be subject to frost damage.

• sun: Aspect: Full sun Hardiness: Fully hardy to half hardy.

• winter: Worth a try in UK gardens for winter hardiness in wet conditions.

• plant: Plant hardiness is generally considered to be the lowest temperature that a plant can withstand during the winter.

• frost: The development of frost hardiness is a metabolic process requiring an energy source.

• stress: Build up their confidence and self esteem again, this reduces stress and develops a stress hardiness for future use.