I grow plants to be fully appreciated for what they are. Not with any intention to be "neat". A nice mounded hebe is spoiled by a thug next door to it for example. A beautiful conifer overwhelmed by a vigorous dahlia then has no distinct form. A hosta grown over by an energetic rambling geranium is spoiled.
Some plants look good "mixing it up"........a blue geranium running into a group of rudbekias.......but "neatness" enables the protected plants to look good in the winter time.
I guess I am a "neat" gardener. I like to see an echinacea, for example, showing off its flowers......and foliage.....without another plant merging with it. Associations can still be arranged....and look better......if space is allowed between them for each to display its own individual beauty.
So, is neatness a swear word for you folks? If you like your plants tumbling into one another to form a tapestry of colour then I guess you will say "yes....neatness is not proper gardening. It's not as nature intended"
So, who are the neat gardeners? Why? And why not?