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Stock - Katz White
Stock - Katz White

Stock - Katz White

Seeds

Sale price$5.80
MATTHIOLA INCANA

My favourite white stock - so far, there's sooo many different series which I haven't properly trialed - yet - but the Katz have become our go-to series.

Compared to a fancy higher percentage double series I did trial this season, the Katz most importantly held their own against the winds much much better, so while netting is always advisable with stock, the Katz give you a little more leeway to by lazy - which is always appreciated :)

The Katz series are about a 50/50 mix between doubles and singles. The doubles are what stock are mostly grown for but don't disregard the singles, they're a welcome touch of airy elegance compared to the densely packed doubles! And as the doubles are what are used/sold more often, I reckon the singles are their little secret weapon of uniqueness!

Being apart of the brassica family, it's best to try and time sowing after your white butterfly numbers subside in autumn but with enough time to make it to flowering before their population explodes back in spring - or be prepared to net them and/or treat with weekly/fortnightly sprays of BT (Bacillus thuringiensis - organic bacteria) to keep the munching caterpillars under control.

APPROX 30 SEEDS

  

SPACING 

8-15cm

HEIGHT

25–40cm

IDEAL SOWING TIME

Autumn–Late Winter
Ideal Planting Method 		Transplant / Direct Sow
 
Stock - Katz White
Stock - Katz White Sale price$5.80

When to Sow:
Autumn to Early Spring

How to Sow:
Transplant

Light & Cover Requirements:
COVER (with vermiculite)

Ideal Temperature:
Medium (approx 21°C)

Germination Speed:
Normal (7–14 days)

In general a lot of stock can be selected for singles / doubles when they are young seedling, normal separate cotyledons (first leaves) are typically doubles, and merged/conjoined cotyledons are typically singles. Lighter green seedlings is also another indicator of double vs darker green are often singles.

The StoX & Milla series can't reliably be selected for doubles by colour alone, as they typically had lots of much lighter green plants which were mostly double but still some singles. This colouration seems to be normal in these series, rather than it being an indicator of any deficiencies.

Plant Type:
Hardy Annual

Ideal Location:
Full Sun / Partial Shade

Spacing:
10–15cm

Height:
60cm+

Most stock (except for the Quartet series) only typically produce one flower stem per plant, so do not pinch!

Some sort of support is generally advised, the taller they get the better your support will need to be.

Stock are best grown in the cooler months, their flowers will be more prone to damage in warm wet spells.

Being apart of the brassica family, it's best to try and time sowing after your white butterfly numbers subside in autumn but with enough time to make it to flowering before their population explodes back in spring - or be prepared to net them and/or treat with weekly/fortnightly sprays of BT (Bacillus thuringiensis - organic bacteria) to keep the munching caterpillars under control.